./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_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_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/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_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/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_3973fd3a-912b-4c3a-8986-fb5191541f04/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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:29:59,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:29:59,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:29:59,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:29:59,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:29:59,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:29:59,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:29:59,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:29:59,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:29:59,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:29:59,613 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:29:59,613 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:29:59,614 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:29:59,614 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:29:59,614 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:29:59,614 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:29:59,614 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:29:59,614 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:29:59,614 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:29:59,614 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:29:59,615 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:29:59,615 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:29:59,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:29:59,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:29:59,616 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:29:59,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:29:59,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:29:59,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:29:59,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:29:59,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:29:59,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:29:59,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:29:59,617 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:29:59,617 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:29:59,617 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:29:59,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:29:59,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:29:59,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:29:59,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:29:59,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:29:59,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:29:59,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:29:59,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:29:59,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:29:59,619 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:29:59,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:29:59,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:29:59,619 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:29:59,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:29:59,619 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_3973fd3a-912b-4c3a-8986-fb5191541f04/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 -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-11-14 05:30:00,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:30:00,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:30:00,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:30:00,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:30:00,074 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:30:00,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c Unable to find full path for "g++" [2024-11-14 05:30:02,394 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:30:02,773 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:30:02,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c [2024-11-14 05:30:02,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/data/82aa127b9/6358289c6fa74a609184fef4750de50f/FLAGba3a95604 [2024-11-14 05:30:02,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/data/82aa127b9/6358289c6fa74a609184fef4750de50f [2024-11-14 05:30:02,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:30:02,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:30:02,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:30:02,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:30:03,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:30:03,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:02" (1/1) ... [2024-11-14 05:30:03,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae50e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03, skipping insertion in model container [2024-11-14 05:30:03,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:02" (1/1) ... [2024-11-14 05:30:03,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:30:03,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:30:03,269 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:30:03,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:30:03,322 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:30:03,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03 WrapperNode [2024-11-14 05:30:03,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:30:03,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:30:03,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:30:03,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:30:03,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,368 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-14 05:30:03,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:30:03,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:30:03,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:30:03,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:30:03,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:30:03,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:30:03,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:30:03,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:30:03,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (1/1) ... [2024-11-14 05:30:03,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:30:03,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:03,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:30:03,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:30:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:30:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:30:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:30:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:30:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:30:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:30:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:30:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:30:03,570 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:30:03,573 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:30:03,893 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-14 05:30:03,893 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:30:03,935 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:30:03,935 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:30:03,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:03 BoogieIcfgContainer [2024-11-14 05:30:03,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:30:03,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:30:03,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:30:03,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:30:03,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:30:02" (1/3) ... [2024-11-14 05:30:03,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dda1023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:03, skipping insertion in model container [2024-11-14 05:30:03,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03" (2/3) ... [2024-11-14 05:30:03,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dda1023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:03, skipping insertion in model container [2024-11-14 05:30:03,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:03" (3/3) ... [2024-11-14 05:30:03,948 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound20.c [2024-11-14 05:30:03,970 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:30:03,972 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_valuebound20.c that has 3 procedures, 55 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2024-11-14 05:30:04,058 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:30:04,081 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;@ec6da56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:30:04,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-14 05:30:04,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 48 states have internal predecessors, (51), 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 05:30:04,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:30:04,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:04,097 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:04,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:04,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:04,104 INFO L85 PathProgramCache]: Analyzing trace with hash 229463047, now seen corresponding path program 1 times [2024-11-14 05:30:04,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:04,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533985551] [2024-11-14 05:30:04,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:04,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:04,313 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 05:30:04,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:04,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533985551] [2024-11-14 05:30:04,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533985551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:04,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:04,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:30:04,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024511885] [2024-11-14 05:30:04,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:04,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:30:04,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:04,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:30:04,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:30:04,357 INFO L87 Difference]: Start difference. First operand has 55 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 48 states have internal predecessors, (51), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 05:30:04,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:04,416 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2024-11-14 05:30:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:30:04,420 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 10 [2024-11-14 05:30:04,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:04,427 INFO L225 Difference]: With dead ends: 68 [2024-11-14 05:30:04,427 INFO L226 Difference]: Without dead ends: 52 [2024-11-14 05:30:04,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:30:04,438 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:04,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:30:04,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-14 05:30:04,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-14 05:30:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 46 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 05:30:04,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2024-11-14 05:30:04,487 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 10 [2024-11-14 05:30:04,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:04,488 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2024-11-14 05:30:04,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 05:30:04,489 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2024-11-14 05:30:04,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:30:04,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:04,490 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:04,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:30:04,491 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:04,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:04,491 INFO L85 PathProgramCache]: Analyzing trace with hash 229459900, now seen corresponding path program 1 times [2024-11-14 05:30:04,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:04,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304797733] [2024-11-14 05:30:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:04,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:30:04,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624821091] [2024-11-14 05:30:04,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:04,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:04,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:04,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:04,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:30:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:04,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:30:04,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:04,673 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 05:30:04,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:30:04,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:04,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304797733] [2024-11-14 05:30:04,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:30:04,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624821091] [2024-11-14 05:30:04,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624821091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:04,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:04,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:30:04,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75597306] [2024-11-14 05:30:04,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:04,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:30:04,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:04,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:30:04,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:30:04,679 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 05:30:04,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:04,870 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2024-11-14 05:30:04,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:30:04,871 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), 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 10 [2024-11-14 05:30:04,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:04,872 INFO L225 Difference]: With dead ends: 86 [2024-11-14 05:30:04,872 INFO L226 Difference]: Without dead ends: 80 [2024-11-14 05:30:04,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 05:30:04,874 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:04,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 61 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:30:04,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-14 05:30:04,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2024-11-14 05:30:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 65 states have internal predecessors, (79), 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 05:30:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2024-11-14 05:30:04,886 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 10 [2024-11-14 05:30:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:04,886 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2024-11-14 05:30:04,887 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), 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 05:30:04,887 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2024-11-14 05:30:04,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:30:04,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:04,888 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:04,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:30:05,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:05,089 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:05,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:05,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1467633310, now seen corresponding path program 1 times [2024-11-14 05:30:05,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:05,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588137957] [2024-11-14 05:30:05,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:05,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:05,233 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 05:30:05,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:05,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588137957] [2024-11-14 05:30:05,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588137957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:05,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:05,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:30:05,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874562540] [2024-11-14 05:30:05,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:05,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:30:05,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:05,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:30:05,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:30:05,236 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 05:30:05,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:05,478 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2024-11-14 05:30:05,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:30:05,481 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), 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 12 [2024-11-14 05:30:05,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:05,483 INFO L225 Difference]: With dead ends: 116 [2024-11-14 05:30:05,483 INFO L226 Difference]: Without dead ends: 109 [2024-11-14 05:30:05,484 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 05:30:05,488 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 34 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:05,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 59 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:30:05,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-14 05:30:05,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2024-11-14 05:30:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5974025974025974) internal successors, (123), 96 states have internal predecessors, (123), 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 05:30:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 135 transitions. [2024-11-14 05:30:05,519 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 135 transitions. Word has length 12 [2024-11-14 05:30:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:05,519 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 135 transitions. [2024-11-14 05:30:05,519 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), 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 05:30:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 135 transitions. [2024-11-14 05:30:05,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:30:05,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:05,523 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:05,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:30:05,524 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:05,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:05,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1748007595, now seen corresponding path program 1 times [2024-11-14 05:30:05,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:05,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132352233] [2024-11-14 05:30:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:05,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:05,776 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 05:30:05,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:05,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132352233] [2024-11-14 05:30:05,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132352233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:05,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:05,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:30:05,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183350009] [2024-11-14 05:30:05,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:05,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:30:05,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:05,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:30:05,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:30:05,779 INFO L87 Difference]: Start difference. First operand 105 states and 135 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 05:30:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:06,352 INFO L93 Difference]: Finished difference Result 111 states and 136 transitions. [2024-11-14 05:30:06,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:30:06,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 13 [2024-11-14 05:30:06,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:06,356 INFO L225 Difference]: With dead ends: 111 [2024-11-14 05:30:06,358 INFO L226 Difference]: Without dead ends: 102 [2024-11-14 05:30:06,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:30:06,360 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 20 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:06,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 76 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:30:06,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-14 05:30:06,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-11-14 05:30:06,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5694444444444444) internal successors, (113), 91 states have internal predecessors, (113), 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 05:30:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2024-11-14 05:30:06,387 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 13 [2024-11-14 05:30:06,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:06,387 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2024-11-14 05:30:06,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 05:30:06,388 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2024-11-14 05:30:06,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:30:06,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:06,390 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:06,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:30:06,390 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:06,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:06,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1646339456, now seen corresponding path program 1 times [2024-11-14 05:30:06,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:06,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662367133] [2024-11-14 05:30:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:06,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:06,581 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 05:30:06,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:06,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662367133] [2024-11-14 05:30:06,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662367133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:06,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563115401] [2024-11-14 05:30:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:06,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:06,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:06,585 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:06,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:30:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:06,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:30:06,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:06,848 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 05:30:06,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:30:06,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563115401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:06,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:30:06,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-14 05:30:06,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040842538] [2024-11-14 05:30:06,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:06,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:30:06,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:06,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:30:06,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:30:06,851 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 05:30:07,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:07,052 INFO L93 Difference]: Finished difference Result 103 states and 129 transitions. [2024-11-14 05:30:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:30:07,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 05:30:07,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:07,053 INFO L225 Difference]: With dead ends: 103 [2024-11-14 05:30:07,054 INFO L226 Difference]: Without dead ends: 102 [2024-11-14 05:30:07,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:30:07,055 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 72 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:07,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 42 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:30:07,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-14 05:30:07,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-11-14 05:30:07,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 91 states have internal predecessors, (112), 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 05:30:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 124 transitions. [2024-11-14 05:30:07,085 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 124 transitions. Word has length 14 [2024-11-14 05:30:07,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:07,085 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 124 transitions. [2024-11-14 05:30:07,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 05:30:07,086 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 124 transitions. [2024-11-14 05:30:07,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 05:30:07,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:07,087 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:07,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:30:07,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:07,288 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:07,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash -503084361, now seen corresponding path program 1 times [2024-11-14 05:30:07,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:07,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313103020] [2024-11-14 05:30:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:30:07,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109113135] [2024-11-14 05:30:07,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:07,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:07,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:07,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:07,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:30:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:07,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:30:07,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:07,504 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 05:30:07,504 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:30:07,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:07,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313103020] [2024-11-14 05:30:07,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:30:07,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109113135] [2024-11-14 05:30:07,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109113135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:07,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:07,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:30:07,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131247703] [2024-11-14 05:30:07,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:07,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:30:07,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:07,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:30:07,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:30:07,508 INFO L87 Difference]: Start difference. First operand 100 states and 124 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (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 05:30:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:07,664 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2024-11-14 05:30:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:30:07,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (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 15 [2024-11-14 05:30:07,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:07,666 INFO L225 Difference]: With dead ends: 101 [2024-11-14 05:30:07,666 INFO L226 Difference]: Without dead ends: 100 [2024-11-14 05:30:07,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 05:30:07,668 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 65 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:07,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 47 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:30:07,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-14 05:30:07,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-14 05:30:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5416666666666667) internal successors, (111), 91 states have internal predecessors, (111), 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 05:30:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2024-11-14 05:30:07,693 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 15 [2024-11-14 05:30:07,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:07,693 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2024-11-14 05:30:07,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (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 05:30:07,694 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2024-11-14 05:30:07,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 05:30:07,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:07,695 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 05:30:07,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:30:07,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:30:07,900 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:07,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:07,900 INFO L85 PathProgramCache]: Analyzing trace with hash 982078532, now seen corresponding path program 1 times [2024-11-14 05:30:07,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:07,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567832645] [2024-11-14 05:30:07,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:07,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:08,027 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 05:30:08,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:08,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567832645] [2024-11-14 05:30:08,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567832645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:08,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801558210] [2024-11-14 05:30:08,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:08,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:08,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:08,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:08,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:30:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:08,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:30:08,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:08,157 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 05:30:08,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:08,261 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 05:30:08,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801558210] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:30:08,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [190134817] [2024-11-14 05:30:08,283 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-14 05:30:08,283 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:08,287 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:08,292 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:08,293 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:09,110 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-14 05:30:09,130 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:09,189 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:10,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [190134817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:10,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:30:10,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 16 [2024-11-14 05:30:10,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189571654] [2024-11-14 05:30:10,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:10,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:30:10,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:10,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:30:10,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:30:10,620 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 05:30:11,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:11,231 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2024-11-14 05:30:11,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:30:11,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 25 [2024-11-14 05:30:11,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:11,232 INFO L225 Difference]: With dead ends: 106 [2024-11-14 05:30:11,233 INFO L226 Difference]: Without dead ends: 104 [2024-11-14 05:30:11,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:30:11,234 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 74 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:11,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 70 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:30:11,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-14 05:30:11,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-14 05:30:11,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.52) internal successors, (114), 94 states have internal predecessors, (114), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:30:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2024-11-14 05:30:11,255 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 25 [2024-11-14 05:30:11,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:11,256 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2024-11-14 05:30:11,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 05:30:11,256 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2024-11-14 05:30:11,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 05:30:11,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:11,257 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 05:30:11,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:30:11,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 05:30:11,462 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:11,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:11,462 INFO L85 PathProgramCache]: Analyzing trace with hash 981770692, now seen corresponding path program 1 times [2024-11-14 05:30:11,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:11,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719686505] [2024-11-14 05:30:11,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:11,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:11,611 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 05:30:11,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:11,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719686505] [2024-11-14 05:30:11,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719686505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:11,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923824187] [2024-11-14 05:30:11,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:11,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:11,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:11,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:11,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:30:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:11,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:30:11,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:11,726 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 05:30:11,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:11,821 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 05:30:11,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923824187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:30:11,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2137473203] [2024-11-14 05:30:11,826 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-14 05:30:11,827 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:11,827 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:11,827 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:11,827 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:12,284 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 44 for LOIs [2024-11-14 05:30:12,293 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:12,334 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:13,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2137473203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:13,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:30:13,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 16 [2024-11-14 05:30:13,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323281312] [2024-11-14 05:30:13,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:13,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:30:13,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:13,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:30:13,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:30:13,569 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 05:30:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:14,140 INFO L93 Difference]: Finished difference Result 110 states and 132 transitions. [2024-11-14 05:30:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:30:14,141 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 25 [2024-11-14 05:30:14,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:14,142 INFO L225 Difference]: With dead ends: 110 [2024-11-14 05:30:14,142 INFO L226 Difference]: Without dead ends: 108 [2024-11-14 05:30:14,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:30:14,144 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 80 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:14,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 67 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:30:14,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-14 05:30:14,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-14 05:30:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 98 states have internal predecessors, (118), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:30:14,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 130 transitions. [2024-11-14 05:30:14,174 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 130 transitions. Word has length 25 [2024-11-14 05:30:14,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:14,174 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 130 transitions. [2024-11-14 05:30:14,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 05:30:14,177 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 130 transitions. [2024-11-14 05:30:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 05:30:14,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:14,178 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] [2024-11-14 05:30:14,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:30:14,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 05:30:14,379 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:14,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:14,380 INFO L85 PathProgramCache]: Analyzing trace with hash -796525974, now seen corresponding path program 1 times [2024-11-14 05:30:14,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:14,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384631422] [2024-11-14 05:30:14,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:14,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:30:14,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950531589] [2024-11-14 05:30:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:14,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:14,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:14,400 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:14,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:30:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:14,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:30:14,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:30:14,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:14,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:14,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384631422] [2024-11-14 05:30:14,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:30:14,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950531589] [2024-11-14 05:30:14,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950531589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:14,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [897379502] [2024-11-14 05:30:14,879 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:30:14,879 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:14,880 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:14,880 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:14,880 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:16,419 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-14 05:30:16,441 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:16,469 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:20,101 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2400#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~x2~0#1_39| Int) (|v_ULTIMATE.start_main_~y1~0#1_50| Int)) (and (<= |v_ULTIMATE.start_main_~y1~0#1_50| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_50|) (<= (+ (* |v_ULTIMATE.start_main_~x2~0#1_39| |v_ULTIMATE.start_main_~y1~0#1_50|) 2147483649) 0) (<= 0 (+ |v_ULTIMATE.start_main_~x2~0#1_39| 2147483648)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:30:20,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:30:20,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:30:20,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 05:30:20,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312583928] [2024-11-14 05:30:20,102 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:30:20,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:30:20,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:20,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:30:20,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:30:20,104 INFO L87 Difference]: Start difference. First operand 108 states and 130 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 05:30:20,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:20,297 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2024-11-14 05:30:20,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:30:20,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 28 [2024-11-14 05:30:20,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:20,299 INFO L225 Difference]: With dead ends: 116 [2024-11-14 05:30:20,299 INFO L226 Difference]: Without dead ends: 109 [2024-11-14 05:30:20,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:30:20,300 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 84 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:20,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 36 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:30:20,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-14 05:30:20,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2024-11-14 05:30:20,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 80 states have (on average 1.375) internal successors, (110), 94 states have internal predecessors, (110), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:30:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2024-11-14 05:30:20,325 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 28 [2024-11-14 05:30:20,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:20,326 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2024-11-14 05:30:20,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 05:30:20,326 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2024-11-14 05:30:20,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 05:30:20,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:20,327 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] [2024-11-14 05:30:20,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:30:20,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:20,532 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:20,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:20,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1077498629, now seen corresponding path program 1 times [2024-11-14 05:30:20,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:20,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396179546] [2024-11-14 05:30:20,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:20,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:30:20,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292663439] [2024-11-14 05:30:20,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:20,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:20,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:20,551 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:20,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:30:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:20,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:30:20,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:30:20,792 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:21,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:21,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396179546] [2024-11-14 05:30:21,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:30:21,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292663439] [2024-11-14 05:30:21,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292663439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:21,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1293367896] [2024-11-14 05:30:21,304 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:30:21,304 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:21,305 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:21,305 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:21,305 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:22,347 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-14 05:30:22,363 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:22,392 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:25,475 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2802#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~x2~0#1_40| Int) (|v_ULTIMATE.start_main_~y1~0#1_57| Int)) (and (<= |v_ULTIMATE.start_main_~y1~0#1_57| 2147483647) (<= |v_ULTIMATE.start_main_~x2~0#1_40| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_57|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_40| |v_ULTIMATE.start_main_~y1~0#1_57|)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:30:25,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:30:25,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:30:25,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 05:30:25,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430557370] [2024-11-14 05:30:25,476 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:30:25,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:30:25,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:25,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:30:25,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:30:25,478 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 05:30:25,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:25,672 INFO L93 Difference]: Finished difference Result 154 states and 181 transitions. [2024-11-14 05:30:25,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:30:25,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 29 [2024-11-14 05:30:25,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:25,674 INFO L225 Difference]: With dead ends: 154 [2024-11-14 05:30:25,674 INFO L226 Difference]: Without dead ends: 151 [2024-11-14 05:30:25,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:30:25,675 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 80 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:25,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 81 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:30:25,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-14 05:30:25,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-11-14 05:30:25,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 128 states have internal predecessors, (158), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:30:25,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 174 transitions. [2024-11-14 05:30:25,697 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 174 transitions. Word has length 29 [2024-11-14 05:30:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:25,698 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 174 transitions. [2024-11-14 05:30:25,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 05:30:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 174 transitions. [2024-11-14 05:30:25,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 05:30:25,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:25,701 INFO L215 NwaCegarLoop]: trace histogram [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 05:30:25,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:30:25,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:25,902 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:25,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:25,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1023093162, now seen corresponding path program 1 times [2024-11-14 05:30:25,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:25,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056321551] [2024-11-14 05:30:25,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:25,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:30:26,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:26,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056321551] [2024-11-14 05:30:26,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056321551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:26,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005432699] [2024-11-14 05:30:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:26,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:26,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:26,159 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:26,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:30:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:26,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:30:26,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:26,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:30:26,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:30:26,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005432699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:26,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:30:26,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-14 05:30:26,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710095325] [2024-11-14 05:30:26,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:26,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:30:26,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:26,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:30:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:30:26,405 INFO L87 Difference]: Start difference. First operand 140 states and 174 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 05:30:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:26,614 INFO L93 Difference]: Finished difference Result 140 states and 174 transitions. [2024-11-14 05:30:26,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:30:26,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 30 [2024-11-14 05:30:26,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:26,616 INFO L225 Difference]: With dead ends: 140 [2024-11-14 05:30:26,617 INFO L226 Difference]: Without dead ends: 138 [2024-11-14 05:30:26,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:30:26,618 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 28 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:26,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 46 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:30:26,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-14 05:30:26,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2024-11-14 05:30:26,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 111 states have (on average 1.3783783783783783) internal successors, (153), 123 states have internal predecessors, (153), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:30:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2024-11-14 05:30:26,636 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 169 transitions. Word has length 30 [2024-11-14 05:30:26,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:26,636 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 169 transitions. [2024-11-14 05:30:26,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 05:30:26,636 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2024-11-14 05:30:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 05:30:26,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:26,637 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] [2024-11-14 05:30:26,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-14 05:30:26,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 05:30:26,838 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:26,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:26,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1651116899, now seen corresponding path program 1 times [2024-11-14 05:30:26,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:26,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432641394] [2024-11-14 05:30:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:26,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:27,050 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 05:30:27,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:27,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432641394] [2024-11-14 05:30:27,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432641394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:27,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895861044] [2024-11-14 05:30:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:27,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:27,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:27,054 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:27,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:30:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:27,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:30:27,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:30:27,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:27,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895861044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:27,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [276954209] [2024-11-14 05:30:27,499 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:30:27,499 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:27,500 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:27,500 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:27,500 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:28,515 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-14 05:30:28,522 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:28,541 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:29,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [276954209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:29,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:30:29,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [8, 3] total 26 [2024-11-14 05:30:29,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958496376] [2024-11-14 05:30:29,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:29,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 05:30:29,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 05:30:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:30:29,889 INFO L87 Difference]: Start difference. First operand 135 states and 169 transitions. Second operand has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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 05:30:31,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:31,569 INFO L93 Difference]: Finished difference Result 140 states and 169 transitions. [2024-11-14 05:30:31,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 05:30:31,570 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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 31 [2024-11-14 05:30:31,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:31,571 INFO L225 Difference]: With dead ends: 140 [2024-11-14 05:30:31,571 INFO L226 Difference]: Without dead ends: 135 [2024-11-14 05:30:31,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=275, Invalid=1131, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 05:30:31,572 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 177 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:31,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 49 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:30:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-14 05:30:31,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2024-11-14 05:30:31,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 119 states have internal predecessors, (144), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:30:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 160 transitions. [2024-11-14 05:30:31,590 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 160 transitions. Word has length 31 [2024-11-14 05:30:31,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:31,591 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 160 transitions. [2024-11-14 05:30:31,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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 05:30:31,591 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 160 transitions. [2024-11-14 05:30:31,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 05:30:31,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:31,592 INFO L215 NwaCegarLoop]: trace histogram [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 05:30:31,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 05:30:31,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:31,793 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:31,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash -823865042, now seen corresponding path program 1 times [2024-11-14 05:30:31,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:31,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600843333] [2024-11-14 05:30:31,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:31,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:30:32,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:32,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600843333] [2024-11-14 05:30:32,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600843333] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:32,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998658108] [2024-11-14 05:30:32,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:32,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:32,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:32,085 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:32,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:30:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:32,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:30:32,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:32,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:30:32,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:30:32,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998658108] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:30:32,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1239915326] [2024-11-14 05:30:32,555 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:30:32,555 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:32,556 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:32,556 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:32,556 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:33,461 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-14 05:30:33,477 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:33,509 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:35,823 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4256#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_65| Int) (|v_ULTIMATE.start_main_~x2~0#1_42| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_65|) (<= 0 (+ (* |v_ULTIMATE.start_main_~x2~0#1_42| |v_ULTIMATE.start_main_~y1~0#1_65|) 2147483648)) (<= |v_ULTIMATE.start_main_~y1~0#1_65| 2147483647) (<= (+ (* |v_ULTIMATE.start_main_~x2~0#1_42| |v_ULTIMATE.start_main_~y1~0#1_65|) 1) 0))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:30:35,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:30:35,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:30:35,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-14 05:30:35,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348787404] [2024-11-14 05:30:35,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:30:35,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 05:30:35,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:35,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 05:30:35,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=955, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:30:35,826 INFO L87 Difference]: Start difference. First operand 131 states and 160 transitions. Second operand has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 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 05:30:36,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:36,486 INFO L93 Difference]: Finished difference Result 134 states and 162 transitions. [2024-11-14 05:30:36,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 05:30:36,487 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 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 32 [2024-11-14 05:30:36,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:36,488 INFO L225 Difference]: With dead ends: 134 [2024-11-14 05:30:36,488 INFO L226 Difference]: Without dead ends: 131 [2024-11-14 05:30:36,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:30:36,489 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 131 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:36,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 62 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:30:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-14 05:30:36,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2024-11-14 05:30:36,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 116 states have internal predecessors, (136), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:30:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 152 transitions. [2024-11-14 05:30:36,502 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 152 transitions. Word has length 32 [2024-11-14 05:30:36,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:36,502 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 152 transitions. [2024-11-14 05:30:36,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 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 05:30:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 152 transitions. [2024-11-14 05:30:36,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-14 05:30:36,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:36,503 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:36,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 05:30:36,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:36,704 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:36,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:36,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1880406017, now seen corresponding path program 1 times [2024-11-14 05:30:36,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:36,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572616553] [2024-11-14 05:30:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:36,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:36,779 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:30:36,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572616553] [2024-11-14 05:30:36,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572616553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:36,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:36,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:30:36,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41183274] [2024-11-14 05:30:36,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:36,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:30:36,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:36,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:30:36,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:30:36,781 INFO L87 Difference]: Start difference. First operand 128 states and 152 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 05:30:37,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:37,044 INFO L93 Difference]: Finished difference Result 129 states and 152 transitions. [2024-11-14 05:30:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:30:37,045 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), 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 33 [2024-11-14 05:30:37,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:37,047 INFO L225 Difference]: With dead ends: 129 [2024-11-14 05:30:37,047 INFO L226 Difference]: Without dead ends: 128 [2024-11-14 05:30:37,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 05:30:37,049 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:37,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:30:37,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-14 05:30:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-14 05:30:37,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 107 states have (on average 1.2429906542056075) internal successors, (133), 116 states have internal predecessors, (133), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:30:37,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2024-11-14 05:30:37,065 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 33 [2024-11-14 05:30:37,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:37,065 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2024-11-14 05:30:37,066 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), 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 05:30:37,066 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2024-11-14 05:30:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-14 05:30:37,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:37,070 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:37,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 05:30:37,070 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:37,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash 229987529, now seen corresponding path program 1 times [2024-11-14 05:30:37,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:37,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621918142] [2024-11-14 05:30:37,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:37,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:30:37,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824269580] [2024-11-14 05:30:37,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:37,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:37,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:37,095 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:37,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:30:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:37,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 05:30:37,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:37,389 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:30:37,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:30:37,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:37,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621918142] [2024-11-14 05:30:37,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:30:37,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824269580] [2024-11-14 05:30:37,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824269580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:30:37,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [63266625] [2024-11-14 05:30:37,507 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:30:37,507 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:37,508 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:37,508 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:37,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:38,347 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-14 05:30:38,363 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:38,384 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:40,562 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5099#(exists ((|v_ULTIMATE.start_main_~y3~0#1_63| Int) (|v_ULTIMATE.start_main_~y2~0#1_79| Int) (|v_ULTIMATE.start_main_~y1~0#1_73| Int) (|v_ULTIMATE.start_main_~x2~0#1_43| Int)) (and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= (* |v_ULTIMATE.start_main_~x2~0#1_43| |v_ULTIMATE.start_main_~y1~0#1_73|) 2147483647) (<= 1 |#StackHeapBarrier|) (= |v_ULTIMATE.start_main_~y2~0#1_79| 0) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_73|) (<= 2147483648 (+ (* |v_ULTIMATE.start_main_~x2~0#1_43| |v_ULTIMATE.start_main_~y1~0#1_73|) |v_ULTIMATE.start_main_~y3~0#1_63|)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y3~0#1_63| 2147483647)))' at error location [2024-11-14 05:30:40,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:30:40,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:30:40,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-14 05:30:40,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384238893] [2024-11-14 05:30:40,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:30:40,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:30:40,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:40,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:30:40,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=730, Unknown=0, NotChecked=0, Total=870 [2024-11-14 05:30:40,564 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 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 05:30:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:41,535 INFO L93 Difference]: Finished difference Result 213 states and 249 transitions. [2024-11-14 05:30:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 05:30:41,536 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2024-11-14 05:30:41,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:41,541 INFO L225 Difference]: With dead ends: 213 [2024-11-14 05:30:41,541 INFO L226 Difference]: Without dead ends: 141 [2024-11-14 05:30:41,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=192, Invalid=1140, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 05:30:41,542 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 85 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:41,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 44 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:30:41,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-14 05:30:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2024-11-14 05:30:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.2033898305084745) internal successors, (142), 126 states have internal predecessors, (142), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 05:30:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 160 transitions. [2024-11-14 05:30:41,565 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 160 transitions. Word has length 33 [2024-11-14 05:30:41,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:41,566 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 160 transitions. [2024-11-14 05:30:41,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 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 05:30:41,566 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 160 transitions. [2024-11-14 05:30:41,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 05:30:41,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:41,568 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:30:41,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 05:30:41,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 05:30:41,772 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:41,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash 566079496, now seen corresponding path program 1 times [2024-11-14 05:30:41,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:41,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297545277] [2024-11-14 05:30:41,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:41,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:30:41,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:41,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297545277] [2024-11-14 05:30:41,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297545277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:41,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700662753] [2024-11-14 05:30:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:41,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:41,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:41,833 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:41,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 05:30:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:41,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:30:41,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:30:41,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:42,027 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:30:42,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700662753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:30:42,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [221096041] [2024-11-14 05:30:42,029 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:30:42,030 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:42,030 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:42,030 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:42,030 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:42,954 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-14 05:30:42,960 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:42,981 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:44,291 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5771#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:30:44,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:30:44,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:30:44,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-14 05:30:44,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648099451] [2024-11-14 05:30:44,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:30:44,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:30:44,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:44,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:30:44,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-11-14 05:30:44,294 INFO L87 Difference]: Start difference. First operand 139 states and 160 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 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 05:30:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:44,438 INFO L93 Difference]: Finished difference Result 305 states and 370 transitions. [2024-11-14 05:30:44,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:30:44,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 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 39 [2024-11-14 05:30:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:44,441 INFO L225 Difference]: With dead ends: 305 [2024-11-14 05:30:44,441 INFO L226 Difference]: Without dead ends: 303 [2024-11-14 05:30:44,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-11-14 05:30:44,443 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 51 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:44,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 94 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:30:44,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-14 05:30:44,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 275. [2024-11-14 05:30:44,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 246 states have (on average 1.2113821138211383) internal successors, (298), 253 states have internal predecessors, (298), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 05:30:44,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 334 transitions. [2024-11-14 05:30:44,480 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 334 transitions. Word has length 39 [2024-11-14 05:30:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:44,481 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 334 transitions. [2024-11-14 05:30:44,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 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 05:30:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 334 transitions. [2024-11-14 05:30:44,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-14 05:30:44,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:44,482 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:30:44,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 05:30:44,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 05:30:44,683 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:44,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:44,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1459403096, now seen corresponding path program 1 times [2024-11-14 05:30:44,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:44,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746355004] [2024-11-14 05:30:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:44,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:44,729 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 05:30:44,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:44,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746355004] [2024-11-14 05:30:44,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746355004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:44,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:44,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:30:44,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443519535] [2024-11-14 05:30:44,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:44,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:30:44,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:44,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:30:44,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:30:44,732 INFO L87 Difference]: Start difference. First operand 275 states and 334 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 05:30:44,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:44,942 INFO L93 Difference]: Finished difference Result 275 states and 334 transitions. [2024-11-14 05:30:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:30:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 41 [2024-11-14 05:30:44,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:44,944 INFO L225 Difference]: With dead ends: 275 [2024-11-14 05:30:44,944 INFO L226 Difference]: Without dead ends: 270 [2024-11-14 05:30:44,944 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 05:30:44,945 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:44,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 33 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:30:44,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-14 05:30:44,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-14 05:30:44,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 242 states have (on average 1.177685950413223) internal successors, (285), 248 states have internal predecessors, (285), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 05:30:44,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 321 transitions. [2024-11-14 05:30:44,980 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 321 transitions. Word has length 41 [2024-11-14 05:30:44,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:44,980 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 321 transitions. [2024-11-14 05:30:44,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 05:30:44,980 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 321 transitions. [2024-11-14 05:30:44,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 05:30:44,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:44,981 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:30:44,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 05:30:44,982 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:44,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:44,982 INFO L85 PathProgramCache]: Analyzing trace with hash -757711680, now seen corresponding path program 1 times [2024-11-14 05:30:44,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:44,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933756121] [2024-11-14 05:30:44,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:44,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:45,029 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:30:45,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:45,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933756121] [2024-11-14 05:30:45,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933756121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:45,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:45,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:30:45,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444589548] [2024-11-14 05:30:45,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:45,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:30:45,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:45,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:30:45,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:30:45,032 INFO L87 Difference]: Start difference. First operand 270 states and 321 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 05:30:45,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:45,082 INFO L93 Difference]: Finished difference Result 270 states and 321 transitions. [2024-11-14 05:30:45,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:30:45,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 44 [2024-11-14 05:30:45,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:45,085 INFO L225 Difference]: With dead ends: 270 [2024-11-14 05:30:45,085 INFO L226 Difference]: Without dead ends: 268 [2024-11-14 05:30:45,085 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 05:30:45,086 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:45,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:30:45,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-14 05:30:45,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-14 05:30:45,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 242 states have (on average 1.1363636363636365) internal successors, (275), 246 states have internal predecessors, (275), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 05:30:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 311 transitions. [2024-11-14 05:30:45,129 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 311 transitions. Word has length 44 [2024-11-14 05:30:45,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:45,129 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 311 transitions. [2024-11-14 05:30:45,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 05:30:45,129 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 311 transitions. [2024-11-14 05:30:45,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 05:30:45,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:45,130 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 05:30:45,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 05:30:45,130 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:45,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:45,131 INFO L85 PathProgramCache]: Analyzing trace with hash 359601559, now seen corresponding path program 2 times [2024-11-14 05:30:45,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:45,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871092441] [2024-11-14 05:30:45,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:45,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:30:45,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875603920] [2024-11-14 05:30:45,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:30:45,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:45,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:45,162 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:45,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 05:30:45,231 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 05:30:45,232 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:30:45,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:30:45,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:30:45,609 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:45,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:45,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871092441] [2024-11-14 05:30:45,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:30:45,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875603920] [2024-11-14 05:30:45,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875603920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:45,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1548451345] [2024-11-14 05:30:45,905 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:30:45,905 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:45,906 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:45,908 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:45,908 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:46,563 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-14 05:30:46,576 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:46,594 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:49,786 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7889#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~y2~0#1| 0) (exists ((|v_ULTIMATE.start_main_~y1~0#1_81| Int) (|v_ULTIMATE.start_main_~x2~0#1_44| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_81|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_44| |v_ULTIMATE.start_main_~y1~0#1_81|)) (<= |v_ULTIMATE.start_main_~y1~0#1_81| 2147483647) (<= |v_ULTIMATE.start_main_~x2~0#1_44| 2147483647))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:30:49,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:30:49,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:30:49,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 05:30:49,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920274960] [2024-11-14 05:30:49,787 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:30:49,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:30:49,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:49,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:30:49,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 05:30:49,789 INFO L87 Difference]: Start difference. First operand 268 states and 311 transitions. Second operand has 14 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (4), 1 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 05:30:50,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:50,549 INFO L93 Difference]: Finished difference Result 374 states and 439 transitions. [2024-11-14 05:30:50,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 05:30:50,549 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2024-11-14 05:30:50,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:50,551 INFO L225 Difference]: With dead ends: 374 [2024-11-14 05:30:50,551 INFO L226 Difference]: Without dead ends: 252 [2024-11-14 05:30:50,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=371, Invalid=2179, Unknown=0, NotChecked=0, Total=2550 [2024-11-14 05:30:50,553 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 93 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:50,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 64 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:30:50,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-14 05:30:50,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2024-11-14 05:30:50,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 227 states have (on average 1.13215859030837) internal successors, (257), 231 states have internal predecessors, (257), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 05:30:50,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 291 transitions. [2024-11-14 05:30:50,584 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 291 transitions. Word has length 47 [2024-11-14 05:30:50,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:50,585 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 291 transitions. [2024-11-14 05:30:50,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 4 states have call successors, (4), 1 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 05:30:50,585 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 291 transitions. [2024-11-14 05:30:50,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 05:30:50,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:50,586 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:50,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 05:30:50,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:50,787 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:50,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:50,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1662240247, now seen corresponding path program 1 times [2024-11-14 05:30:50,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:50,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318630546] [2024-11-14 05:30:50,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:50,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:50,988 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 05:30:50,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:50,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318630546] [2024-11-14 05:30:50,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318630546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:50,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660971471] [2024-11-14 05:30:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:50,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:50,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:50,992 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:50,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 05:30:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:51,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:30:51,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 05:30:51,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 05:30:51,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660971471] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:30:51,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1094601062] [2024-11-14 05:30:51,414 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:30:51,414 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:51,415 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:51,415 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:51,415 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:52,328 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:30:52,340 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:52,353 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:30:55,516 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9063#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_90| Int) (|v_ULTIMATE.start_main_~x2~0#1_47| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_90|) (<= (* |v_ULTIMATE.start_main_~x2~0#1_47| |v_ULTIMATE.start_main_~y1~0#1_90|) 2147483647) (<= 1 (* |v_ULTIMATE.start_main_~x2~0#1_47| |v_ULTIMATE.start_main_~y1~0#1_90|)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:30:55,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:30:55,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:30:55,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-14 05:30:55,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24808735] [2024-11-14 05:30:55,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:30:55,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:30:55,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:55,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:30:55,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 05:30:55,519 INFO L87 Difference]: Start difference. First operand 252 states and 291 transitions. Second operand has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 13 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:30:56,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:56,322 INFO L93 Difference]: Finished difference Result 574 states and 654 transitions. [2024-11-14 05:30:56,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 05:30:56,323 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 13 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 67 [2024-11-14 05:30:56,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:56,325 INFO L225 Difference]: With dead ends: 574 [2024-11-14 05:30:56,326 INFO L226 Difference]: Without dead ends: 573 [2024-11-14 05:30:56,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 164 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=345, Invalid=2105, Unknown=0, NotChecked=0, Total=2450 [2024-11-14 05:30:56,328 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 94 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:56,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 95 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:30:56,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-14 05:30:56,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 531. [2024-11-14 05:30:56,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 492 states have (on average 1.0934959349593496) internal successors, (538), 496 states have internal predecessors, (538), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-14 05:30:56,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 600 transitions. [2024-11-14 05:30:56,402 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 600 transitions. Word has length 67 [2024-11-14 05:30:56,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:56,403 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 600 transitions. [2024-11-14 05:30:56,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.636363636363637) internal successors, (106), 13 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:30:56,403 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 600 transitions. [2024-11-14 05:30:56,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 05:30:56,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:56,405 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:56,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 05:30:56,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:56,606 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:30:56,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:56,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2038689881, now seen corresponding path program 1 times [2024-11-14 05:30:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:56,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354813055] [2024-11-14 05:30:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:56,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:30:56,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859594084] [2024-11-14 05:30:56,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:56,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:56,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:56,631 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:56,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 05:30:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:56,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 05:30:56,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:57,320 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 94 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 05:30:57,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:57,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:57,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354813055] [2024-11-14 05:30:57,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:30:57,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859594084] [2024-11-14 05:30:57,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859594084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:57,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1047601261] [2024-11-14 05:30:57,865 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:30:57,865 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:57,866 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:57,866 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:57,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:30:58,870 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:30:58,880 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:30:58,893 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:31:02,942 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10665#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_99| Int) (|v_ULTIMATE.start_main_~x2~0#1_50| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_50| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_99|) (<= 2147483648 (* |v_ULTIMATE.start_main_~x2~0#1_50| |v_ULTIMATE.start_main_~y1~0#1_99|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:31:02,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:31:02,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:31:02,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 05:31:02,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975383897] [2024-11-14 05:31:02,942 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:02,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:31:02,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:02,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:31:02,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 05:31:02,944 INFO L87 Difference]: Start difference. First operand 531 states and 600 transitions. Second operand has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 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 05:31:03,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:03,596 INFO L93 Difference]: Finished difference Result 660 states and 754 transitions. [2024-11-14 05:31:03,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:31:03,596 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 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 83 [2024-11-14 05:31:03,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:03,599 INFO L225 Difference]: With dead ends: 660 [2024-11-14 05:31:03,599 INFO L226 Difference]: Without dead ends: 655 [2024-11-14 05:31:03,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 129 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=186, Invalid=1620, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:31:03,601 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 61 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:03,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 164 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:31:03,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-14 05:31:03,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 506. [2024-11-14 05:31:03,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 468 states have (on average 1.0940170940170941) internal successors, (512), 472 states have internal predecessors, (512), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 05:31:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 572 transitions. [2024-11-14 05:31:03,657 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 572 transitions. Word has length 83 [2024-11-14 05:31:03,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:03,657 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 572 transitions. [2024-11-14 05:31:03,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 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 05:31:03,658 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 572 transitions. [2024-11-14 05:31:03,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 05:31:03,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:03,659 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:03,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 05:31:03,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:03,860 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:31:03,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:03,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1855841824, now seen corresponding path program 2 times [2024-11-14 05:31:03,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:03,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825039680] [2024-11-14 05:31:03,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:03,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:31:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 05:31:04,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:04,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825039680] [2024-11-14 05:31:04,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825039680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:04,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068655709] [2024-11-14 05:31:04,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:31:04,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:04,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:04,058 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:04,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 05:31:04,136 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 05:31:04,136 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:31:04,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:31:04,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:04,276 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 05:31:04,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:04,509 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 05:31:04,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068655709] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:31:04,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1973122723] [2024-11-14 05:31:04,511 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:31:04,511 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:31:04,511 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:31:04,512 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:31:04,512 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:05,207 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-14 05:31:05,213 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:31:05,232 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:31:06,530 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12581#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:31:06,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:31:06,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:31:06,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-14 05:31:06,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022325396] [2024-11-14 05:31:06,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:06,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:31:06,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:06,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:31:06,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2024-11-14 05:31:06,533 INFO L87 Difference]: Start difference. First operand 506 states and 572 transitions. Second operand has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-14 05:31:06,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:06,856 INFO L93 Difference]: Finished difference Result 901 states and 1043 transitions. [2024-11-14 05:31:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:31:06,857 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 93 [2024-11-14 05:31:06,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:06,861 INFO L225 Difference]: With dead ends: 901 [2024-11-14 05:31:06,861 INFO L226 Difference]: Without dead ends: 900 [2024-11-14 05:31:06,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 250 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2024-11-14 05:31:06,864 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 110 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:06,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 138 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:31:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-14 05:31:06,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 863. [2024-11-14 05:31:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 802 states have (on average 1.1159600997506234) internal successors, (895), 806 states have internal predecessors, (895), 53 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 05:31:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1001 transitions. [2024-11-14 05:31:06,981 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1001 transitions. Word has length 93 [2024-11-14 05:31:06,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:06,984 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1001 transitions. [2024-11-14 05:31:06,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.25) internal successors, (159), 13 states have internal predecessors, (159), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-14 05:31:06,984 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1001 transitions. [2024-11-14 05:31:06,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 05:31:06,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:06,985 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:07,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 05:31:07,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:07,191 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:31:07,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:07,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1187358959, now seen corresponding path program 2 times [2024-11-14 05:31:07,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:07,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698541196] [2024-11-14 05:31:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:07,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:31:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 05:31:07,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:07,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698541196] [2024-11-14 05:31:07,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698541196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:07,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455180622] [2024-11-14 05:31:07,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:31:07,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:07,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:07,386 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:07,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 05:31:07,532 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 05:31:07,533 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:31:07,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:31:07,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:07,837 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-14 05:31:07,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:08,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455180622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:08,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1521288962] [2024-11-14 05:31:08,457 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:31:08,457 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:31:08,458 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:31:08,458 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:31:08,458 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:09,404 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:31:09,414 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:31:09,425 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:31:12,429 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14942#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_108| Int) (|v_ULTIMATE.start_main_~x2~0#1_51| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_108| |v_ULTIMATE.start_main_~x2~0#1_51|)) (<= |v_ULTIMATE.start_main_~x2~0#1_51| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_108|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:31:12,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:31:12,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:31:12,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13 [2024-11-14 05:31:12,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286904589] [2024-11-14 05:31:12,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:12,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:31:12,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:12,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:31:12,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1326, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 05:31:12,431 INFO L87 Difference]: Start difference. First operand 863 states and 1001 transitions. Second operand has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-14 05:31:13,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:13,500 INFO L93 Difference]: Finished difference Result 1630 states and 1924 transitions. [2024-11-14 05:31:13,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 05:31:13,500 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 101 [2024-11-14 05:31:13,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:13,505 INFO L225 Difference]: With dead ends: 1630 [2024-11-14 05:31:13,506 INFO L226 Difference]: Without dead ends: 1076 [2024-11-14 05:31:13,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 179 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=262, Invalid=2600, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 05:31:13,512 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 161 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:13,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 434 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:31:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-11-14 05:31:13,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 904. [2024-11-14 05:31:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 840 states have (on average 1.1035714285714286) internal successors, (927), 844 states have internal predecessors, (927), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-14 05:31:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1039 transitions. [2024-11-14 05:31:13,636 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1039 transitions. Word has length 101 [2024-11-14 05:31:13,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:13,636 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1039 transitions. [2024-11-14 05:31:13,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-14 05:31:13,637 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1039 transitions. [2024-11-14 05:31:13,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-14 05:31:13,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:13,640 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:13,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-14 05:31:13,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:13,840 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:31:13,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:13,841 INFO L85 PathProgramCache]: Analyzing trace with hash -590962249, now seen corresponding path program 3 times [2024-11-14 05:31:13,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:13,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098241263] [2024-11-14 05:31:13,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:13,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:31:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:31:13,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759043393] [2024-11-14 05:31:13,874 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:31:13,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:13,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:13,878 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:13,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 05:31:13,969 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:31:13,970 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:31:13,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 05:31:13,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 3 proven. 228 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 05:31:14,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:15,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:15,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098241263] [2024-11-14 05:31:15,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:31:15,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759043393] [2024-11-14 05:31:15,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759043393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:15,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [599046976] [2024-11-14 05:31:15,128 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:31:15,128 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:31:15,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:31:15,128 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:31:15,128 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:15,961 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:31:15,971 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:31:15,983 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:31:19,768 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18266#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_52| Int) (|v_ULTIMATE.start_main_~y1~0#1_115| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_115| |v_ULTIMATE.start_main_~x2~0#1_52|)) (<= |v_ULTIMATE.start_main_~x2~0#1_52| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_115|))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:31:19,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:31:19,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:31:19,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-14 05:31:19,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236001770] [2024-11-14 05:31:19,769 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:19,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 05:31:19,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:19,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 05:31:19,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1553, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 05:31:19,771 INFO L87 Difference]: Start difference. First operand 904 states and 1039 transitions. Second operand has 16 states, 14 states have (on average 7.0) internal successors, (98), 16 states have internal predecessors, (98), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:31:21,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:21,026 INFO L93 Difference]: Finished difference Result 1087 states and 1270 transitions. [2024-11-14 05:31:21,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 05:31:21,027 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.0) internal successors, (98), 16 states have internal predecessors, (98), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 119 [2024-11-14 05:31:21,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:21,031 INFO L225 Difference]: With dead ends: 1087 [2024-11-14 05:31:21,031 INFO L226 Difference]: Without dead ends: 1082 [2024-11-14 05:31:21,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 195 SyntacticMatches, 14 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=176, Invalid=1630, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:31:21,033 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 28 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:21,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 375 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 05:31:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-14 05:31:21,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 904. [2024-11-14 05:31:21,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 840 states have (on average 1.1035714285714286) internal successors, (927), 844 states have internal predecessors, (927), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-14 05:31:21,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1039 transitions. [2024-11-14 05:31:21,176 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1039 transitions. Word has length 119 [2024-11-14 05:31:21,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:21,177 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1039 transitions. [2024-11-14 05:31:21,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.0) internal successors, (98), 16 states have internal predecessors, (98), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 05:31:21,177 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1039 transitions. [2024-11-14 05:31:21,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-14 05:31:21,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:21,182 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:21,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 05:31:21,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-14 05:31:21,383 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:31:21,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:21,383 INFO L85 PathProgramCache]: Analyzing trace with hash 151373825, now seen corresponding path program 4 times [2024-11-14 05:31:21,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:21,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683265809] [2024-11-14 05:31:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:21,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:31:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:31:21,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679550982] [2024-11-14 05:31:21,417 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:31:21,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:21,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:21,420 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:21,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 05:31:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:21,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 05:31:21,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:23,219 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 5 proven. 223 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 05:31:23,219 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:24,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:24,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683265809] [2024-11-14 05:31:24,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:31:24,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679550982] [2024-11-14 05:31:24,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679550982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:24,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1314142268] [2024-11-14 05:31:24,187 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:31:24,187 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:31:24,187 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:31:24,187 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:31:24,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:25,311 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:31:25,326 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:31:25,365 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:31:30,212 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20960#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_55| Int) (|v_ULTIMATE.start_main_~y1~0#1_124| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_124| |v_ULTIMATE.start_main_~x2~0#1_55|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_124|) (<= |v_ULTIMATE.start_main_~x2~0#1_55| 2147483647))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:31:30,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:31:30,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:31:30,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-14 05:31:30,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667636193] [2024-11-14 05:31:30,212 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:30,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:31:30,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:31:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=2268, Unknown=0, NotChecked=0, Total=2550 [2024-11-14 05:31:30,214 INFO L87 Difference]: Start difference. First operand 904 states and 1039 transitions. Second operand has 23 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:31:31,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:31,866 INFO L93 Difference]: Finished difference Result 1087 states and 1272 transitions. [2024-11-14 05:31:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 05:31:31,867 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 119 [2024-11-14 05:31:31,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:31,871 INFO L225 Difference]: With dead ends: 1087 [2024-11-14 05:31:31,872 INFO L226 Difference]: Without dead ends: 1082 [2024-11-14 05:31:31,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 185 SyntacticMatches, 15 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2013 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=484, Invalid=3676, Unknown=0, NotChecked=0, Total=4160 [2024-11-14 05:31:31,874 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 115 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:31,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 186 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:31:31,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-14 05:31:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 936. [2024-11-14 05:31:32,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 870 states have (on average 1.1022988505747127) internal successors, (959), 874 states have internal predecessors, (959), 58 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-14 05:31:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1075 transitions. [2024-11-14 05:31:32,005 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1075 transitions. Word has length 119 [2024-11-14 05:31:32,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:32,006 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1075 transitions. [2024-11-14 05:31:32,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:31:32,006 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1075 transitions. [2024-11-14 05:31:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-14 05:31:32,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:32,009 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:32,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-14 05:31:32,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 05:31:32,210 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:31:32,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:32,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1054132481, now seen corresponding path program 5 times [2024-11-14 05:31:32,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:32,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242791828] [2024-11-14 05:31:32,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:32,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:31:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:32,499 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-14 05:31:32,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:32,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242791828] [2024-11-14 05:31:32,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242791828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:32,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206730825] [2024-11-14 05:31:32,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:31:32,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:32,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:32,504 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:32,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 05:31:32,656 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 05:31:32,657 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:31:32,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:31:32,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:33,099 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-14 05:31:33,099 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-14 05:31:33,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206730825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:31:33,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [543430203] [2024-11-14 05:31:33,816 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:31:33,816 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:31:33,817 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:31:33,817 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:31:33,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:34,792 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:31:34,803 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:31:34,826 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:31:38,769 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24136#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~x2~0#1_56| Int) (|v_ULTIMATE.start_main_~y1~0#1_134| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_134| |v_ULTIMATE.start_main_~x2~0#1_56|)) (<= |v_ULTIMATE.start_main_~x2~0#1_56| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_134|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:31:38,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:31:38,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:31:38,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 22 [2024-11-14 05:31:38,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846356080] [2024-11-14 05:31:38,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:38,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:31:38,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:38,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:31:38,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1794, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 05:31:38,771 INFO L87 Difference]: Start difference. First operand 936 states and 1075 transitions. Second operand has 22 states, 22 states have (on average 11.363636363636363) internal successors, (250), 22 states have internal predecessors, (250), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-14 05:31:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:44,879 INFO L93 Difference]: Finished difference Result 2000 states and 2380 transitions. [2024-11-14 05:31:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-14 05:31:44,880 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.363636363636363) internal successors, (250), 22 states have internal predecessors, (250), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 137 [2024-11-14 05:31:44,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:44,884 INFO L225 Difference]: With dead ends: 2000 [2024-11-14 05:31:44,884 INFO L226 Difference]: Without dead ends: 1792 [2024-11-14 05:31:44,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 369 SyntacticMatches, 7 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2829 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=860, Invalid=7696, Unknown=0, NotChecked=0, Total=8556 [2024-11-14 05:31:44,887 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 584 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:44,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1033 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-14 05:31:44,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2024-11-14 05:31:45,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1228. [2024-11-14 05:31:45,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1146 states have (on average 1.0732984293193717) internal successors, (1230), 1149 states have internal predecessors, (1230), 75 states have call successors, (75), 3 states have call predecessors, (75), 3 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-14 05:31:45,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1380 transitions. [2024-11-14 05:31:45,068 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1380 transitions. Word has length 137 [2024-11-14 05:31:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:45,069 INFO L471 AbstractCegarLoop]: Abstraction has 1228 states and 1380 transitions. [2024-11-14 05:31:45,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.363636363636363) internal successors, (250), 22 states have internal predecessors, (250), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-14 05:31:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1380 transitions. [2024-11-14 05:31:45,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-14 05:31:45,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:45,072 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:45,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 05:31:45,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 05:31:45,277 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:31:45,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:45,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1301422313, now seen corresponding path program 2 times [2024-11-14 05:31:45,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:45,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217413726] [2024-11-14 05:31:45,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:45,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:31:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:45,663 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 6 proven. 347 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-14 05:31:45,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:45,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217413726] [2024-11-14 05:31:45,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217413726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:45,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843638977] [2024-11-14 05:31:45,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:31:45,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:45,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:45,667 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:45,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 05:31:45,766 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-14 05:31:45,766 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:31:45,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 05:31:45,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:46,018 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 6 proven. 347 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-14 05:31:46,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 6 proven. 347 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-14 05:31:46,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843638977] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:31:46,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [983482871] [2024-11-14 05:31:46,464 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:31:46,464 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:31:46,464 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:31:46,465 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:31:46,465 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:47,450 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:31:47,462 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:31:47,480 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:31:50,816 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28746#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_59| Int) (|v_ULTIMATE.start_main_~y1~0#1_143| Int)) (and (<= (* |v_ULTIMATE.start_main_~y1~0#1_143| |v_ULTIMATE.start_main_~x2~0#1_59|) 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_143|) (<= 1 (* |v_ULTIMATE.start_main_~y1~0#1_143| |v_ULTIMATE.start_main_~x2~0#1_59|)))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:31:50,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:31:50,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:31:50,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-14 05:31:50,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467522046] [2024-11-14 05:31:50,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:50,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 05:31:50,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:31:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 05:31:50,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1647, Unknown=0, NotChecked=0, Total=1892 [2024-11-14 05:31:50,819 INFO L87 Difference]: Start difference. First operand 1228 states and 1380 transitions. Second operand has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 21 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-14 05:31:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:52,713 INFO L93 Difference]: Finished difference Result 3295 states and 3735 transitions. [2024-11-14 05:31:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-14 05:31:52,713 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 21 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 139 [2024-11-14 05:31:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:52,722 INFO L225 Difference]: With dead ends: 3295 [2024-11-14 05:31:52,722 INFO L226 Difference]: Without dead ends: 3294 [2024-11-14 05:31:52,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 376 SyntacticMatches, 8 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2309 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1117, Invalid=4889, Unknown=0, NotChecked=0, Total=6006 [2024-11-14 05:31:52,724 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 208 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:52,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 117 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:31:52,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2024-11-14 05:31:53,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3234. [2024-11-14 05:31:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3036 states have (on average 1.0487483530961792) internal successors, (3184), 3039 states have internal predecessors, (3184), 191 states have call successors, (191), 3 states have call predecessors, (191), 3 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-14 05:31:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 3566 transitions. [2024-11-14 05:31:53,251 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 3566 transitions. Word has length 139 [2024-11-14 05:31:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:53,252 INFO L471 AbstractCegarLoop]: Abstraction has 3234 states and 3566 transitions. [2024-11-14 05:31:53,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 11.894736842105264) internal successors, (226), 21 states have internal predecessors, (226), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-14 05:31:53,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 3566 transitions. [2024-11-14 05:31:53,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-14 05:31:53,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:53,256 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:53,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 05:31:53,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 05:31:53,461 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:31:53,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:53,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1142152027, now seen corresponding path program 6 times [2024-11-14 05:31:53,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:31:53,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265625209] [2024-11-14 05:31:53,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:53,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:31:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:31:53,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [206843860] [2024-11-14 05:31:53,497 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:31:53,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:53,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:53,500 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:53,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 05:31:53,617 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:31:53,617 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:31:53,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 05:31:53,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:55,444 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 7 proven. 409 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-14 05:31:55,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:56,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:31:56,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265625209] [2024-11-14 05:31:56,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:31:56,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206843860] [2024-11-14 05:31:56,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206843860] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:56,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2077010189] [2024-11-14 05:31:56,339 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:31:56,339 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:31:56,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:31:56,339 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:31:56,340 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:57,149 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:31:57,158 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:31:57,170 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:32:02,477 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '36720#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_62| Int) (|v_ULTIMATE.start_main_~y1~0#1_152| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_62| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_152| |v_ULTIMATE.start_main_~x2~0#1_62|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_152|))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:32:02,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:32:02,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:32:02,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2024-11-14 05:32:02,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971691332] [2024-11-14 05:32:02,478 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:32:02,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 05:32:02,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:02,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 05:32:02,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2024-11-14 05:32:02,480 INFO L87 Difference]: Start difference. First operand 3234 states and 3566 transitions. Second operand has 28 states, 24 states have (on average 5.375) internal successors, (129), 26 states have internal predecessors, (129), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 05:32:07,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:07,886 INFO L93 Difference]: Finished difference Result 3392 states and 3741 transitions. [2024-11-14 05:32:07,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-14 05:32:07,890 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 5.375) internal successors, (129), 26 states have internal predecessors, (129), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Word has length 155 [2024-11-14 05:32:07,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:07,901 INFO L225 Difference]: With dead ends: 3392 [2024-11-14 05:32:07,901 INFO L226 Difference]: Without dead ends: 3390 [2024-11-14 05:32:07,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 247 SyntacticMatches, 20 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5159 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=1450, Invalid=10760, Unknown=0, NotChecked=0, Total=12210 [2024-11-14 05:32:07,905 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 309 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:07,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 214 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 05:32:07,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2024-11-14 05:32:08,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3234. [2024-11-14 05:32:08,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3036 states have (on average 1.047760210803689) internal successors, (3181), 3039 states have internal predecessors, (3181), 191 states have call successors, (191), 3 states have call predecessors, (191), 3 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-14 05:32:08,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 3563 transitions. [2024-11-14 05:32:08,406 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 3563 transitions. Word has length 155 [2024-11-14 05:32:08,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:08,406 INFO L471 AbstractCegarLoop]: Abstraction has 3234 states and 3563 transitions. [2024-11-14 05:32:08,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 5.375) internal successors, (129), 26 states have internal predecessors, (129), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 05:32:08,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 3563 transitions. [2024-11-14 05:32:08,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-14 05:32:08,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:08,412 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:08,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 05:32:08,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 05:32:08,616 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:32:08,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1837994275, now seen corresponding path program 7 times [2024-11-14 05:32:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:08,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472218638] [2024-11-14 05:32:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:08,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 135 proven. 304 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-14 05:32:08,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:08,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472218638] [2024-11-14 05:32:08,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472218638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:08,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054816534] [2024-11-14 05:32:08,871 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:32:08,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:08,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:08,874 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:08,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 05:32:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:08,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:32:08,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 243 proven. 196 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-14 05:32:09,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:09,716 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 79 proven. 360 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-14 05:32:09,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054816534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:32:09,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1623832958] [2024-11-14 05:32:09,718 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:32:09,718 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:09,719 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:09,719 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:09,719 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:32:10,711 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:32:10,718 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:32:10,727 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:32:15,053 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '45362#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_162| Int) (|v_ULTIMATE.start_main_~x2~0#1_63| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_162| |v_ULTIMATE.start_main_~x2~0#1_63|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_162|) (<= |v_ULTIMATE.start_main_~x2~0#1_63| 2147483647))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:32:15,053 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:32:15,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:32:15,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2024-11-14 05:32:15,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385879517] [2024-11-14 05:32:15,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:32:15,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:32:15,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:15,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:32:15,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1103, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 05:32:15,055 INFO L87 Difference]: Start difference. First operand 3234 states and 3563 transitions. Second operand has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-14 05:32:15,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:15,595 INFO L93 Difference]: Finished difference Result 3993 states and 4414 transitions. [2024-11-14 05:32:15,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:32:15,595 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 173 [2024-11-14 05:32:15,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:15,604 INFO L225 Difference]: With dead ends: 3993 [2024-11-14 05:32:15,604 INFO L226 Difference]: Without dead ends: 3365 [2024-11-14 05:32:15,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 464 SyntacticMatches, 27 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1097 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 05:32:15,606 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 11 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:15,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 160 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:32:15,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2024-11-14 05:32:16,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 3220. [2024-11-14 05:32:16,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 3024 states have (on average 1.0456349206349207) internal successors, (3162), 3027 states have internal predecessors, (3162), 189 states have call successors, (189), 3 states have call predecessors, (189), 3 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-11-14 05:32:16,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 3540 transitions. [2024-11-14 05:32:16,087 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 3540 transitions. Word has length 173 [2024-11-14 05:32:16,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:16,087 INFO L471 AbstractCegarLoop]: Abstraction has 3220 states and 3540 transitions. [2024-11-14 05:32:16,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.461538461538462) internal successors, (175), 13 states have internal predecessors, (175), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-14 05:32:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 3540 transitions. [2024-11-14 05:32:16,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-14 05:32:16,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:16,093 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:16,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 05:32:16,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 05:32:16,297 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:32:16,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash -433639209, now seen corresponding path program 8 times [2024-11-14 05:32:16,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:16,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677473195] [2024-11-14 05:32:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:16,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:16,702 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 304 proven. 382 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-14 05:32:16,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:16,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677473195] [2024-11-14 05:32:16,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677473195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:16,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403518582] [2024-11-14 05:32:16,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:32:16,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:16,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:16,705 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:16,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 05:32:16,832 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-14 05:32:16,833 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:32:16,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 05:32:16,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 0 proven. 646 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-14 05:32:17,612 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:18,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403518582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1484674799] [2024-11-14 05:32:18,008 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:32:18,008 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:18,008 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:18,008 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:18,009 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:32:18,654 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:32:18,663 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:32:18,675 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:32:24,248 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '54147#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_170| Int) (|v_ULTIMATE.start_main_~x2~0#1_64| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_170| |v_ULTIMATE.start_main_~x2~0#1_64|)) (<= |v_ULTIMATE.start_main_~x2~0#1_64| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_170|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:32:24,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:32:24,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:32:24,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2024-11-14 05:32:24,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466148851] [2024-11-14 05:32:24,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:32:24,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:32:24,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:24,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:32:24,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2147, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 05:32:24,250 INFO L87 Difference]: Start difference. First operand 3220 states and 3540 transitions. Second operand has 23 states, 23 states have (on average 12.434782608695652) internal successors, (286), 23 states have internal predecessors, (286), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-14 05:32:27,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:27,159 INFO L93 Difference]: Finished difference Result 4287 states and 4728 transitions. [2024-11-14 05:32:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-14 05:32:27,161 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.434782608695652) internal successors, (286), 23 states have internal predecessors, (286), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 191 [2024-11-14 05:32:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:27,171 INFO L225 Difference]: With dead ends: 4287 [2024-11-14 05:32:27,171 INFO L226 Difference]: Without dead ends: 3568 [2024-11-14 05:32:27,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 349 SyntacticMatches, 10 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2246 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=489, Invalid=6153, Unknown=0, NotChecked=0, Total=6642 [2024-11-14 05:32:27,173 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 280 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 3176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:27,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1289 Invalid, 3176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3144 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 05:32:27,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2024-11-14 05:32:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3040. [2024-11-14 05:32:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3040 states, 2855 states have (on average 1.0388791593695272) internal successors, (2966), 2858 states have internal predecessors, (2966), 178 states have call successors, (178), 3 states have call predecessors, (178), 3 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-14 05:32:27,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 3322 transitions. [2024-11-14 05:32:27,534 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 3322 transitions. Word has length 191 [2024-11-14 05:32:27,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:27,534 INFO L471 AbstractCegarLoop]: Abstraction has 3040 states and 3322 transitions. [2024-11-14 05:32:27,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.434782608695652) internal successors, (286), 23 states have internal predecessors, (286), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-14 05:32:27,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 3322 transitions. [2024-11-14 05:32:27,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-14 05:32:27,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:27,539 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:27,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 05:32:27,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:27,743 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:32:27,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:27,744 INFO L85 PathProgramCache]: Analyzing trace with hash -304821835, now seen corresponding path program 9 times [2024-11-14 05:32:27,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:27,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997469999] [2024-11-14 05:32:27,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:27,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:32:27,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [934950253] [2024-11-14 05:32:27,782 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:32:27,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:27,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:27,785 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:27,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 05:32:27,901 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:32:27,901 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:32:27,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 05:32:27,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:30,392 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 9 proven. 651 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-14 05:32:30,392 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:31,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:31,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997469999] [2024-11-14 05:32:31,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:32:31,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934950253] [2024-11-14 05:32:31,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934950253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:31,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [614758673] [2024-11-14 05:32:31,537 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:32:31,537 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:31,537 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:31,537 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:31,537 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:32:32,447 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:32:32,459 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:32:32,481 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:32:38,420 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '63131#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_67| Int) (|v_ULTIMATE.start_main_~y1~0#1_179| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_179| |v_ULTIMATE.start_main_~x2~0#1_67|)) (<= |v_ULTIMATE.start_main_~x2~0#1_67| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_179|))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:32:38,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:32:38,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:32:38,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2024-11-14 05:32:38,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796807368] [2024-11-14 05:32:38,421 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:32:38,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-14 05:32:38,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:38,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-14 05:32:38,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=3026, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 05:32:38,423 INFO L87 Difference]: Start difference. First operand 3040 states and 3322 transitions. Second operand has 31 states, 27 states have (on average 5.888888888888889) internal successors, (159), 29 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:32:42,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:42,295 INFO L93 Difference]: Finished difference Result 3244 states and 3542 transitions. [2024-11-14 05:32:42,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-14 05:32:42,296 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 5.888888888888889) internal successors, (159), 29 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Word has length 191 [2024-11-14 05:32:42,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:42,307 INFO L225 Difference]: With dead ends: 3244 [2024-11-14 05:32:42,307 INFO L226 Difference]: Without dead ends: 3242 [2024-11-14 05:32:42,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 311 SyntacticMatches, 25 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4210 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=1105, Invalid=7085, Unknown=0, NotChecked=0, Total=8190 [2024-11-14 05:32:42,309 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 204 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:42,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 212 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 05:32:42,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2024-11-14 05:32:42,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 3040. [2024-11-14 05:32:42,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3040 states, 2855 states have (on average 1.0381786339754817) internal successors, (2964), 2858 states have internal predecessors, (2964), 178 states have call successors, (178), 3 states have call predecessors, (178), 3 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-14 05:32:42,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 3320 transitions. [2024-11-14 05:32:42,628 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 3320 transitions. Word has length 191 [2024-11-14 05:32:42,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:42,629 INFO L471 AbstractCegarLoop]: Abstraction has 3040 states and 3320 transitions. [2024-11-14 05:32:42,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 5.888888888888889) internal successors, (159), 29 states have internal predecessors, (159), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:32:42,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 3320 transitions. [2024-11-14 05:32:42,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-14 05:32:42,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:42,635 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:42,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 05:32:42,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:42,836 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:32:42,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:42,837 INFO L85 PathProgramCache]: Analyzing trace with hash 605681552, now seen corresponding path program 3 times [2024-11-14 05:32:42,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:42,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288314718] [2024-11-14 05:32:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:42,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:43,224 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 05:32:43,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:43,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288314718] [2024-11-14 05:32:43,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288314718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:43,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080153421] [2024-11-14 05:32:43,225 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:32:43,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:43,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:43,227 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:43,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 05:32:43,335 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:32:43,335 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:32:43,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 05:32:43,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 05:32:43,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 0 proven. 830 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 05:32:44,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080153421] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:32:44,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1127746808] [2024-11-14 05:32:44,248 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-14 05:32:44,248 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:44,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:44,249 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:44,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:32:44,868 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 31 for LOIs [2024-11-14 05:32:44,872 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:32:44,883 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:32:46,519 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71522#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (= |ULTIMATE.start_main_~y1~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~x2~0#1| 2147483648)) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:32:46,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:32:46,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:32:46,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-14 05:32:46,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171425372] [2024-11-14 05:32:46,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:32:46,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-14 05:32:46,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:46,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-14 05:32:46,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 05:32:46,529 INFO L87 Difference]: Start difference. First operand 3040 states and 3320 transitions. Second operand has 25 states, 24 states have (on average 14.125) internal successors, (339), 25 states have internal predecessors, (339), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-14 05:32:47,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:47,283 INFO L93 Difference]: Finished difference Result 3578 states and 3967 transitions. [2024-11-14 05:32:47,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 05:32:47,283 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 14.125) internal successors, (339), 25 states have internal predecessors, (339), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) Word has length 201 [2024-11-14 05:32:47,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:47,296 INFO L225 Difference]: With dead ends: 3578 [2024-11-14 05:32:47,296 INFO L226 Difference]: Without dead ends: 3577 [2024-11-14 05:32:47,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 562 SyntacticMatches, 11 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 05:32:47,299 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:47,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 202 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:32:47,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2024-11-14 05:32:47,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3577. [2024-11-14 05:32:47,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3577 states, 3359 states have (on average 1.0443584400119084) internal successors, (3508), 3362 states have internal predecessors, (3508), 211 states have call successors, (211), 3 states have call predecessors, (211), 3 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-14 05:32:47,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3577 states to 3577 states and 3930 transitions. [2024-11-14 05:32:47,697 INFO L78 Accepts]: Start accepts. Automaton has 3577 states and 3930 transitions. Word has length 201 [2024-11-14 05:32:47,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:47,698 INFO L471 AbstractCegarLoop]: Abstraction has 3577 states and 3930 transitions. [2024-11-14 05:32:47,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 14.125) internal successors, (339), 25 states have internal predecessors, (339), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-14 05:32:47,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3577 states and 3930 transitions. [2024-11-14 05:32:47,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-14 05:32:47,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:47,703 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:47,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 05:32:47,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-14 05:32:47,908 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:32:47,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:47,908 INFO L85 PathProgramCache]: Analyzing trace with hash -825242905, now seen corresponding path program 10 times [2024-11-14 05:32:47,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:47,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91706870] [2024-11-14 05:32:47,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:47,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 418 proven. 594 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-14 05:32:48,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:48,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91706870] [2024-11-14 05:32:48,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91706870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:48,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469944823] [2024-11-14 05:32:48,413 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:32:48,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:48,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:48,416 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:48,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 05:32:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:48,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:32:48,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 460 proven. 552 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-14 05:32:49,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:49,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 460 proven. 552 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-14 05:32:49,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469944823] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:32:49,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [39291988] [2024-11-14 05:32:49,965 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:32:49,965 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:49,965 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:49,965 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:49,966 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:32:50,679 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:32:50,687 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:32:50,698 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:32:56,654 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '80986#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_188| Int) (|v_ULTIMATE.start_main_~x2~0#1_68| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_68| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_188|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_188| |v_ULTIMATE.start_main_~x2~0#1_68|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:32:56,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:32:56,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:32:56,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 32 [2024-11-14 05:32:56,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26419] [2024-11-14 05:32:56,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:32:56,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-14 05:32:56,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:56,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-14 05:32:56,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=2586, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 05:32:56,658 INFO L87 Difference]: Start difference. First operand 3577 states and 3930 transitions. Second operand has 32 states, 32 states have (on average 13.4375) internal successors, (430), 32 states have internal predecessors, (430), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-14 05:32:58,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:58,170 INFO L93 Difference]: Finished difference Result 5116 states and 5689 transitions. [2024-11-14 05:32:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-14 05:32:58,171 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 13.4375) internal successors, (430), 32 states have internal predecessors, (430), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) Word has length 227 [2024-11-14 05:32:58,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:58,181 INFO L225 Difference]: With dead ends: 5116 [2024-11-14 05:32:58,181 INFO L226 Difference]: Without dead ends: 4459 [2024-11-14 05:32:58,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 610 SyntacticMatches, 31 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3255 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=700, Invalid=4556, Unknown=0, NotChecked=0, Total=5256 [2024-11-14 05:32:58,184 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 139 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:58,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 508 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:32:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2024-11-14 05:32:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 3694. [2024-11-14 05:32:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 3468 states have (on average 1.044405997693195) internal successors, (3622), 3471 states have internal predecessors, (3622), 219 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2024-11-14 05:32:58,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4060 transitions. [2024-11-14 05:32:58,505 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4060 transitions. Word has length 227 [2024-11-14 05:32:58,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:58,506 INFO L471 AbstractCegarLoop]: Abstraction has 3694 states and 4060 transitions. [2024-11-14 05:32:58,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 13.4375) internal successors, (430), 32 states have internal predecessors, (430), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-14 05:32:58,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4060 transitions. [2024-11-14 05:32:58,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-14 05:32:58,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:58,510 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:58,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-14 05:32:58,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-14 05:32:58,714 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:32:58,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:58,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1152324273, now seen corresponding path program 11 times [2024-11-14 05:32:58,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:58,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365888043] [2024-11-14 05:32:58,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:58,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:32:58,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1243047631] [2024-11-14 05:32:58,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:32:58,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:58,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:58,752 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:58,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 05:32:58,888 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-14 05:32:58,889 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:32:58,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:32:58,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:59,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-14 05:32:59,269 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:59,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365888043] [2024-11-14 05:32:59,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:32:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243047631] [2024-11-14 05:32:59,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243047631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [854050361] [2024-11-14 05:32:59,788 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:32:59,788 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:59,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:59,789 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:59,789 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:00,500 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:33:00,509 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:33:00,527 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:33:04,280 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '91694#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_197| Int) (|v_ULTIMATE.start_main_~x2~0#1_69| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_69| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_197|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_197| |v_ULTIMATE.start_main_~x2~0#1_69|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:33:04,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:33:04,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:33:04,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 05:33:04,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381452576] [2024-11-14 05:33:04,281 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:33:04,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 05:33:04,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:04,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 05:33:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1117, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 05:33:04,282 INFO L87 Difference]: Start difference. First operand 3694 states and 4060 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 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 05:33:05,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:05,816 INFO L93 Difference]: Finished difference Result 5316 states and 5879 transitions. [2024-11-14 05:33:05,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 05:33:05,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 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 227 [2024-11-14 05:33:05,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:05,827 INFO L225 Difference]: With dead ends: 5316 [2024-11-14 05:33:05,827 INFO L226 Difference]: Without dead ends: 4828 [2024-11-14 05:33:05,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 419 SyntacticMatches, 12 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=287, Invalid=2575, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 05:33:05,829 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 138 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:05,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 366 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:33:05,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2024-11-14 05:33:06,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4056. [2024-11-14 05:33:06,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 3806 states have (on average 1.0496584340514976) internal successors, (3995), 3809 states have internal predecessors, (3995), 243 states have call successors, (243), 3 states have call predecessors, (243), 3 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) [2024-11-14 05:33:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 4481 transitions. [2024-11-14 05:33:06,310 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 4481 transitions. Word has length 227 [2024-11-14 05:33:06,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:06,311 INFO L471 AbstractCegarLoop]: Abstraction has 4056 states and 4481 transitions. [2024-11-14 05:33:06,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 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 05:33:06,312 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 4481 transitions. [2024-11-14 05:33:06,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-14 05:33:06,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:06,316 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:06,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-14 05:33:06,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-14 05:33:06,516 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:33:06,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:06,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1489562865, now seen corresponding path program 12 times [2024-11-14 05:33:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:06,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221277498] [2024-11-14 05:33:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:06,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:33:06,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731096036] [2024-11-14 05:33:06,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:33:06,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:06,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:06,584 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:33:06,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 05:33:06,739 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:33:06,739 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:33:06,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-14 05:33:06,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 26 proven. 950 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-14 05:33:10,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:33:11,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:33:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221277498] [2024-11-14 05:33:11,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:33:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731096036] [2024-11-14 05:33:11,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731096036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:33:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2003255545] [2024-11-14 05:33:11,638 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:33:11,638 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:33:11,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:33:11,638 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:33:11,638 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:12,350 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:33:12,360 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:33:12,379 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:33:17,913 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '103064#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_207| Int) (|v_ULTIMATE.start_main_~x2~0#1_72| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_72| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_207|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_207| |v_ULTIMATE.start_main_~x2~0#1_72|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:33:17,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:33:17,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:33:17,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2024-11-14 05:33:17,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695056586] [2024-11-14 05:33:17,913 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:33:17,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-14 05:33:17,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:17,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-14 05:33:17,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=3945, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 05:33:17,915 INFO L87 Difference]: Start difference. First operand 4056 states and 4481 transitions. Second operand has 39 states, 35 states have (on average 5.4) internal successors, (189), 35 states have internal predecessors, (189), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:33:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:23,880 INFO L93 Difference]: Finished difference Result 5201 states and 5762 transitions. [2024-11-14 05:33:23,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-14 05:33:23,881 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 35 states have (on average 5.4) internal successors, (189), 35 states have internal predecessors, (189), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 227 [2024-11-14 05:33:23,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:23,890 INFO L225 Difference]: With dead ends: 5201 [2024-11-14 05:33:23,891 INFO L226 Difference]: Without dead ends: 4527 [2024-11-14 05:33:23,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 388 SyntacticMatches, 12 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4891 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=1688, Invalid=11194, Unknown=0, NotChecked=0, Total=12882 [2024-11-14 05:33:23,893 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 381 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:23,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 315 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 05:33:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2024-11-14 05:33:24,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 3905. [2024-11-14 05:33:24,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 3664 states have (on average 1.050764192139738) internal successors, (3850), 3667 states have internal predecessors, (3850), 234 states have call successors, (234), 3 states have call predecessors, (234), 3 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2024-11-14 05:33:24,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 4318 transitions. [2024-11-14 05:33:24,325 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 4318 transitions. Word has length 227 [2024-11-14 05:33:24,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:24,326 INFO L471 AbstractCegarLoop]: Abstraction has 3905 states and 4318 transitions. [2024-11-14 05:33:24,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 35 states have (on average 5.4) internal successors, (189), 35 states have internal predecessors, (189), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:33:24,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 4318 transitions. [2024-11-14 05:33:24,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-14 05:33:24,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:24,331 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:24,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-14 05:33:24,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-14 05:33:24,531 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:33:24,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:24,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1679214743, now seen corresponding path program 13 times [2024-11-14 05:33:24,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:24,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175970482] [2024-11-14 05:33:24,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:24,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:33:24,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229280106] [2024-11-14 05:33:24,584 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:33:24,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:24,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:24,587 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:33:24,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 05:33:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:24,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 05:33:24,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 0 proven. 1230 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-14 05:33:25,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:33:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 0 proven. 1230 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-14 05:33:27,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:33:27,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175970482] [2024-11-14 05:33:27,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:33:27,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229280106] [2024-11-14 05:33:27,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229280106] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:33:27,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1364780908] [2024-11-14 05:33:27,338 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:33:27,339 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:33:27,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:33:27,339 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:33:27,339 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:28,051 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:33:28,060 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:33:28,072 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:33:32,478 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '115029#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_227| Int) (|v_ULTIMATE.start_main_~x2~0#1_73| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_73| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_227| |v_ULTIMATE.start_main_~x2~0#1_73|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_227|))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:33:32,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:33:32,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:33:32,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-14 05:33:32,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076478130] [2024-11-14 05:33:32,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:33:32,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:33:32,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:32,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:33:32,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1760, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 05:33:32,480 INFO L87 Difference]: Start difference. First operand 3905 states and 4318 transitions. Second operand has 22 states, 21 states have (on average 14.80952380952381) internal successors, (311), 22 states have internal predecessors, (311), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-14 05:33:37,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:37,329 INFO L93 Difference]: Finished difference Result 8085 states and 9040 transitions. [2024-11-14 05:33:37,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-14 05:33:37,330 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 14.80952380952381) internal successors, (311), 22 states have internal predecessors, (311), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 263 [2024-11-14 05:33:37,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:37,352 INFO L225 Difference]: With dead ends: 8085 [2024-11-14 05:33:37,352 INFO L226 Difference]: Without dead ends: 8082 [2024-11-14 05:33:37,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 730 SyntacticMatches, 14 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=723, Invalid=4107, Unknown=0, NotChecked=0, Total=4830 [2024-11-14 05:33:37,356 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 250 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:37,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 810 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-14 05:33:37,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8082 states. [2024-11-14 05:33:38,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8082 to 4477. [2024-11-14 05:33:38,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4200 states have (on average 1.0547619047619048) internal successors, (4430), 4203 states have internal predecessors, (4430), 270 states have call successors, (270), 3 states have call predecessors, (270), 3 states have return successors, (270), 270 states have call predecessors, (270), 270 states have call successors, (270) [2024-11-14 05:33:38,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 4970 transitions. [2024-11-14 05:33:38,091 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 4970 transitions. Word has length 263 [2024-11-14 05:33:38,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:38,092 INFO L471 AbstractCegarLoop]: Abstraction has 4477 states and 4970 transitions. [2024-11-14 05:33:38,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 14.80952380952381) internal successors, (311), 22 states have internal predecessors, (311), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-14 05:33:38,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 4970 transitions. [2024-11-14 05:33:38,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-14 05:33:38,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:38,098 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:38,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-14 05:33:38,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-14 05:33:38,303 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:33:38,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:38,303 INFO L85 PathProgramCache]: Analyzing trace with hash -804527058, now seen corresponding path program 1 times [2024-11-14 05:33:38,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:38,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827725465] [2024-11-14 05:33:38,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:38,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 1272 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-14 05:33:38,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:33:38,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827725465] [2024-11-14 05:33:38,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827725465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:33:38,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4472703] [2024-11-14 05:33:38,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:38,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:38,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:38,596 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:33:38,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 05:33:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:38,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:33:38,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 1272 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-14 05:33:39,135 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:33:39,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 1272 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-14 05:33:39,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4472703] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:33:39,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1169163509] [2024-11-14 05:33:39,617 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:33:39,617 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:33:39,617 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:33:39,618 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:33:39,618 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:40,501 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:33:40,509 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:33:40,520 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:33:43,681 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '130908#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x2~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~x2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:33:43,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:33:43,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:33:43,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-14 05:33:43,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013186867] [2024-11-14 05:33:43,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:33:43,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:33:43,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:43,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:33:43,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1084, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 05:33:43,684 INFO L87 Difference]: Start difference. First operand 4477 states and 4970 transitions. Second operand has 13 states, 12 states have (on average 18.333333333333332) internal successors, (220), 13 states have internal predecessors, (220), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-14 05:33:45,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:45,134 INFO L93 Difference]: Finished difference Result 11567 states and 13144 transitions. [2024-11-14 05:33:45,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:33:45,134 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 18.333333333333332) internal successors, (220), 13 states have internal predecessors, (220), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 276 [2024-11-14 05:33:45,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:45,166 INFO L225 Difference]: With dead ends: 11567 [2024-11-14 05:33:45,166 INFO L226 Difference]: Without dead ends: 11566 [2024-11-14 05:33:45,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 783 SyntacticMatches, 15 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=176, Invalid=1084, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 05:33:45,169 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 17 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:45,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 191 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:33:45,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2024-11-14 05:33:46,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 4616. [2024-11-14 05:33:46,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4616 states, 4330 states have (on average 1.0545034642032332) internal successors, (4566), 4333 states have internal predecessors, (4566), 279 states have call successors, (279), 3 states have call predecessors, (279), 3 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2024-11-14 05:33:46,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 5124 transitions. [2024-11-14 05:33:46,033 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 5124 transitions. Word has length 276 [2024-11-14 05:33:46,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:46,034 INFO L471 AbstractCegarLoop]: Abstraction has 4616 states and 5124 transitions. [2024-11-14 05:33:46,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 18.333333333333332) internal successors, (220), 13 states have internal predecessors, (220), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-14 05:33:46,034 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 5124 transitions. [2024-11-14 05:33:46,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-14 05:33:46,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:46,041 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:46,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 05:33:46,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-14 05:33:46,242 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:33:46,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:46,243 INFO L85 PathProgramCache]: Analyzing trace with hash -286675703, now seen corresponding path program 14 times [2024-11-14 05:33:46,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:46,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459447809] [2024-11-14 05:33:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:46,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:33:46,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [465096089] [2024-11-14 05:33:46,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:33:46,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:46,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:46,364 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:33:46,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 05:33:46,551 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 05:33:46,551 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:33:46,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 05:33:46,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1793 backedges. 766 proven. 161 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2024-11-14 05:33:47,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:33:47,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:33:47,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459447809] [2024-11-14 05:33:47,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:33:47,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465096089] [2024-11-14 05:33:47,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465096089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:33:47,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1455939867] [2024-11-14 05:33:47,570 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:33:47,570 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:33:47,570 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:33:47,570 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:33:47,571 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:48,580 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:33:48,601 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:33:48,632 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:33:52,762 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '150037#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_248| Int) (|v_ULTIMATE.start_main_~x2~0#1_74| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_248|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_248| |v_ULTIMATE.start_main_~x2~0#1_74|)) (<= |v_ULTIMATE.start_main_~x2~0#1_74| 2147483647))) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:33:52,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:33:52,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:33:52,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 05:33:52,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000671335] [2024-11-14 05:33:52,763 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:33:52,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:33:52,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:33:52,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:33:52,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 05:33:52,764 INFO L87 Difference]: Start difference. First operand 4616 states and 5124 transitions. Second operand has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-14 05:33:54,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:54,135 INFO L93 Difference]: Finished difference Result 5372 states and 5971 transitions. [2024-11-14 05:33:54,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 05:33:54,135 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 281 [2024-11-14 05:33:54,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:54,147 INFO L225 Difference]: With dead ends: 5372 [2024-11-14 05:33:54,147 INFO L226 Difference]: Without dead ends: 4598 [2024-11-14 05:33:54,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 523 SyntacticMatches, 15 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:33:54,150 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 70 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:54,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 510 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:33:54,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2024-11-14 05:33:54,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 4436. [2024-11-14 05:33:54,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4159 states have (on average 1.0557826400577062) internal successors, (4391), 4162 states have internal predecessors, (4391), 270 states have call successors, (270), 3 states have call predecessors, (270), 3 states have return successors, (270), 270 states have call predecessors, (270), 270 states have call successors, (270) [2024-11-14 05:33:54,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 4931 transitions. [2024-11-14 05:33:54,789 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 4931 transitions. Word has length 281 [2024-11-14 05:33:54,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:54,790 INFO L471 AbstractCegarLoop]: Abstraction has 4436 states and 4931 transitions. [2024-11-14 05:33:54,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-14 05:33:54,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 4931 transitions. [2024-11-14 05:33:54,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-14 05:33:54,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:54,793 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:54,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-14 05:33:54,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-14 05:33:54,994 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:33:54,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:54,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1801826647, now seen corresponding path program 3 times [2024-11-14 05:33:54,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:54,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309299927] [2024-11-14 05:33:54,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:54,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:55,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 14 proven. 1699 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-14 05:33:55,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:33:55,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309299927] [2024-11-14 05:33:55,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309299927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:33:55,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005988630] [2024-11-14 05:33:55,786 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:33:55,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:55,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:55,788 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:33:55,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 05:33:55,922 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:33:55,922 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:33:55,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 05:33:55,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 14 proven. 1699 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-14 05:33:56,489 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:33:57,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 14 proven. 1699 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-14 05:33:57,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005988630] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:33:57,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [483197268] [2024-11-14 05:33:57,613 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:33:57,613 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:33:57,613 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:33:57,613 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:33:57,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:58,365 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:33:58,375 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:33:58,386 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:34:02,513 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '162847#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y1~0#1_257| Int) (|v_ULTIMATE.start_main_~x2~0#1_77| Int)) (and (<= 1 (* |v_ULTIMATE.start_main_~y1~0#1_257| |v_ULTIMATE.start_main_~x2~0#1_77|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_257|) (<= (* |v_ULTIMATE.start_main_~y1~0#1_257| |v_ULTIMATE.start_main_~x2~0#1_77|) 2147483647))) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:34:02,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:34:02,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:34:02,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 36 [2024-11-14 05:34:02,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305178885] [2024-11-14 05:34:02,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:34:02,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-14 05:34:02,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:02,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-14 05:34:02,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=621, Invalid=2919, Unknown=0, NotChecked=0, Total=3540 [2024-11-14 05:34:02,516 INFO L87 Difference]: Start difference. First operand 4436 states and 4931 transitions. Second operand has 37 states, 35 states have (on average 13.314285714285715) internal successors, (466), 37 states have internal predecessors, (466), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-14 05:34:09,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:09,462 INFO L93 Difference]: Finished difference Result 20440 states and 22988 transitions. [2024-11-14 05:34:09,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-11-14 05:34:09,463 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 13.314285714285715) internal successors, (466), 37 states have internal predecessors, (466), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 283 [2024-11-14 05:34:09,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:09,534 INFO L225 Difference]: With dead ends: 20440 [2024-11-14 05:34:09,534 INFO L226 Difference]: Without dead ends: 20439 [2024-11-14 05:34:09,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 792 SyntacticMatches, 16 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7153 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=4293, Invalid=13529, Unknown=0, NotChecked=0, Total=17822 [2024-11-14 05:34:09,540 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 525 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:09,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 210 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 05:34:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20439 states. [2024-11-14 05:34:12,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20439 to 18378. [2024-11-14 05:34:12,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18378 states, 17267 states have (on average 1.0345167081716569) internal successors, (17863), 17270 states have internal predecessors, (17863), 1104 states have call successors, (1104), 3 states have call predecessors, (1104), 3 states have return successors, (1104), 1104 states have call predecessors, (1104), 1104 states have call successors, (1104) [2024-11-14 05:34:12,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18378 states to 18378 states and 20071 transitions. [2024-11-14 05:34:12,626 INFO L78 Accepts]: Start accepts. Automaton has 18378 states and 20071 transitions. Word has length 283 [2024-11-14 05:34:12,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:12,626 INFO L471 AbstractCegarLoop]: Abstraction has 18378 states and 20071 transitions. [2024-11-14 05:34:12,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 13.314285714285715) internal successors, (466), 37 states have internal predecessors, (466), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-14 05:34:12,626 INFO L276 IsEmpty]: Start isEmpty. Operand 18378 states and 20071 transitions. [2024-11-14 05:34:12,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-14 05:34:12,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:12,631 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:12,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-14 05:34:12,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 05:34:12,832 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:34:12,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:12,832 INFO L85 PathProgramCache]: Analyzing trace with hash -942971897, now seen corresponding path program 15 times [2024-11-14 05:34:12,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:34:12,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184359192] [2024-11-14 05:34:12,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:12,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:34:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:34:12,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058728705] [2024-11-14 05:34:12,878 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:34:12,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:12,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:34:12,881 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:34:12,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 05:34:13,055 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:34:13,055 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:34:13,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-14 05:34:13,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:15,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 7 proven. 1877 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-14 05:34:15,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:34:15,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:34:15,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184359192] [2024-11-14 05:34:15,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:34:15,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058728705] [2024-11-14 05:34:15,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058728705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:34:15,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [574633189] [2024-11-14 05:34:15,607 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:34:15,607 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:34:15,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:34:15,607 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:34:15,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:34:16,355 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:34:16,369 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:34:16,387 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:34:22,192 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '207641#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_264| Int) (|v_ULTIMATE.start_main_~x2~0#1_78| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_264| |v_ULTIMATE.start_main_~x2~0#1_78|)) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_264|) (<= |v_ULTIMATE.start_main_~x2~0#1_78| 2147483647))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:34:22,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:34:22,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:34:22,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-11-14 05:34:22,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818868201] [2024-11-14 05:34:22,193 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:34:22,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-14 05:34:22,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:22,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-14 05:34:22,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=3058, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 05:34:22,194 INFO L87 Difference]: Start difference. First operand 18378 states and 20071 transitions. Second operand has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 32 states have internal predecessors, (248), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-14 05:34:27,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:27,426 INFO L93 Difference]: Finished difference Result 21837 states and 23829 transitions. [2024-11-14 05:34:27,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-14 05:34:27,427 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 32 states have internal predecessors, (248), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 299 [2024-11-14 05:34:27,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:27,467 INFO L225 Difference]: With dead ends: 21837 [2024-11-14 05:34:27,467 INFO L226 Difference]: Without dead ends: 18469 [2024-11-14 05:34:27,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 537 SyntacticMatches, 16 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1744 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=272, Invalid=3388, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 05:34:27,477 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 39 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:27,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 755 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 05:34:27,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18469 states. [2024-11-14 05:34:30,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18469 to 18314. [2024-11-14 05:34:30,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18314 states, 17207 states have (on average 1.0343464868948684) internal successors, (17798), 17210 states have internal predecessors, (17798), 1100 states have call successors, (1100), 3 states have call predecessors, (1100), 3 states have return successors, (1100), 1100 states have call predecessors, (1100), 1100 states have call successors, (1100) [2024-11-14 05:34:30,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18314 states to 18314 states and 19998 transitions. [2024-11-14 05:34:30,304 INFO L78 Accepts]: Start accepts. Automaton has 18314 states and 19998 transitions. Word has length 299 [2024-11-14 05:34:30,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:30,304 INFO L471 AbstractCegarLoop]: Abstraction has 18314 states and 19998 transitions. [2024-11-14 05:34:30,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 8.266666666666667) internal successors, (248), 32 states have internal predecessors, (248), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-14 05:34:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 18314 states and 19998 transitions. [2024-11-14 05:34:30,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-14 05:34:30,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:30,311 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:30,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-14 05:34:30,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-14 05:34:30,512 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:34:30,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:30,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1352983887, now seen corresponding path program 16 times [2024-11-14 05:34:30,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:34:30,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503228565] [2024-11-14 05:34:30,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:30,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:34:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:31,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 503 proven. 1604 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-14 05:34:31,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:34:31,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503228565] [2024-11-14 05:34:31,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503228565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:34:31,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74651517] [2024-11-14 05:34:31,382 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:34:31,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:31,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:34:31,384 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:34:31,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-14 05:34:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:31,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:34:31,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 599 proven. 1508 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-14 05:34:32,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:34:32,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 599 proven. 1508 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-14 05:34:32,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74651517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:34:32,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1054823121] [2024-11-14 05:34:32,938 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:34:32,938 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:34:32,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:34:32,939 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:34:32,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:34:33,816 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:34:33,886 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:34:33,897 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:34:39,471 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '254762#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y1~0#1_272| Int) (|v_ULTIMATE.start_main_~x2~0#1_79| Int)) (and (<= |v_ULTIMATE.start_main_~x2~0#1_79| 2147483647) (<= 0 |v_ULTIMATE.start_main_~y1~0#1_272|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_272| |v_ULTIMATE.start_main_~x2~0#1_79|)))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:34:39,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:34:39,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:34:39,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 30 [2024-11-14 05:34:39,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728445647] [2024-11-14 05:34:39,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:34:39,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-14 05:34:39,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:39,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-14 05:34:39,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=2420, Unknown=0, NotChecked=0, Total=2756 [2024-11-14 05:34:39,475 INFO L87 Difference]: Start difference. First operand 18314 states and 19998 transitions. Second operand has 30 states, 30 states have (on average 13.7) internal successors, (411), 30 states have internal predecessors, (411), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-14 05:34:43,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:43,599 INFO L93 Difference]: Finished difference Result 24371 states and 26668 transitions. [2024-11-14 05:34:43,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 05:34:43,600 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 13.7) internal successors, (411), 30 states have internal predecessors, (411), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 317 [2024-11-14 05:34:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:43,625 INFO L225 Difference]: With dead ends: 24371 [2024-11-14 05:34:43,626 INFO L226 Difference]: Without dead ends: 16569 [2024-11-14 05:34:43,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 865 SyntacticMatches, 53 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3631 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=460, Invalid=3200, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 05:34:43,640 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 29 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:43,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 879 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:34:43,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16569 states. [2024-11-14 05:34:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16569 to 14051. [2024-11-14 05:34:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14051 states, 13202 states have (on average 1.0287835176488411) internal successors, (13582), 13205 states have internal predecessors, (13582), 842 states have call successors, (842), 3 states have call predecessors, (842), 3 states have return successors, (842), 842 states have call predecessors, (842), 842 states have call successors, (842) [2024-11-14 05:34:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14051 states to 14051 states and 15266 transitions. [2024-11-14 05:34:45,978 INFO L78 Accepts]: Start accepts. Automaton has 14051 states and 15266 transitions. Word has length 317 [2024-11-14 05:34:45,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:45,978 INFO L471 AbstractCegarLoop]: Abstraction has 14051 states and 15266 transitions. [2024-11-14 05:34:45,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.7) internal successors, (411), 30 states have internal predecessors, (411), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-14 05:34:45,978 INFO L276 IsEmpty]: Start isEmpty. Operand 14051 states and 15266 transitions. [2024-11-14 05:34:45,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-14 05:34:45,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:45,986 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:46,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-14 05:34:46,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-14 05:34:46,187 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:34:46,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1007892785, now seen corresponding path program 17 times [2024-11-14 05:34:46,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:34:46,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338060271] [2024-11-14 05:34:46,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:46,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:34:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 599 proven. 1508 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-14 05:34:46,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:34:46,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338060271] [2024-11-14 05:34:46,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338060271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:34:46,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308567195] [2024-11-14 05:34:46,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:34:46,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:34:46,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:34:46,943 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:34:46,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-14 05:34:47,174 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-14 05:34:47,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:34:47,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 05:34:47,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:48,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 0 proven. 1687 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-11-14 05:34:48,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:34:48,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308567195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:34:48,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [26617470] [2024-11-14 05:34:48,814 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:34:48,815 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:34:48,815 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:34:48,815 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:34:48,815 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:34:49,542 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:34:49,556 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:34:49,572 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:34:57,703 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '299044#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (exists ((|v_ULTIMATE.start_main_~x2~0#1_80| Int) (|v_ULTIMATE.start_main_~y1~0#1_280| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_280|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_280| |v_ULTIMATE.start_main_~x2~0#1_80|)) (<= |v_ULTIMATE.start_main_~x2~0#1_80| 2147483647))) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:34:57,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:34:57,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:34:57,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13] total 32 [2024-11-14 05:34:57,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842099440] [2024-11-14 05:34:57,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:34:57,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-14 05:34:57,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:57,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-14 05:34:57,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=2998, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 05:34:57,706 INFO L87 Difference]: Start difference. First operand 14051 states and 15266 transitions. Second operand has 32 states, 32 states have (on average 13.15625) internal successors, (421), 32 states have internal predecessors, (421), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-14 05:35:04,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:35:04,110 INFO L93 Difference]: Finished difference Result 19096 states and 20775 transitions. [2024-11-14 05:35:04,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-14 05:35:04,111 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 13.15625) internal successors, (421), 32 states have internal predecessors, (421), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 317 [2024-11-14 05:35:04,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:35:04,129 INFO L225 Difference]: With dead ends: 19096 [2024-11-14 05:35:04,130 INFO L226 Difference]: Without dead ends: 16950 [2024-11-14 05:35:04,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 592 SyntacticMatches, 17 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4207 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=923, Invalid=9997, Unknown=0, NotChecked=0, Total=10920 [2024-11-14 05:35:04,134 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 522 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 5398 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 5444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 5398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:35:04,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 2095 Invalid, 5444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 5398 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 05:35:04,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16950 states. [2024-11-14 05:35:06,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16950 to 14915. [2024-11-14 05:35:06,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14915 states, 14011 states have (on average 1.0259082149739491) internal successors, (14374), 14014 states have internal predecessors, (14374), 897 states have call successors, (897), 3 states have call predecessors, (897), 3 states have return successors, (897), 897 states have call predecessors, (897), 897 states have call successors, (897) [2024-11-14 05:35:06,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14915 states to 14915 states and 16168 transitions. [2024-11-14 05:35:06,623 INFO L78 Accepts]: Start accepts. Automaton has 14915 states and 16168 transitions. Word has length 317 [2024-11-14 05:35:06,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:35:06,624 INFO L471 AbstractCegarLoop]: Abstraction has 14915 states and 16168 transitions. [2024-11-14 05:35:06,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 13.15625) internal successors, (421), 32 states have internal predecessors, (421), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-14 05:35:06,624 INFO L276 IsEmpty]: Start isEmpty. Operand 14915 states and 16168 transitions. [2024-11-14 05:35:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-14 05:35:06,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:35:06,629 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:35:06,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-14 05:35:06,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:06,830 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:35:06,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:35:06,831 INFO L85 PathProgramCache]: Analyzing trace with hash 310351201, now seen corresponding path program 18 times [2024-11-14 05:35:06,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:35:06,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952006787] [2024-11-14 05:35:06,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:06,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:35:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:35:06,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883611151] [2024-11-14 05:35:06,887 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:35:06,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:06,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:35:06,889 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:35:06,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3973fd3a-912b-4c3a-8986-fb5191541f04/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-14 05:35:07,093 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:35:07,093 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:35:07,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-11-14 05:35:07,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:36:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2630 backedges. 40 proven. 2337 refuted. 18 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-14 05:36:05,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:36:05,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:36:05,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952006787] [2024-11-14 05:36:05,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:36:05,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883611151] [2024-11-14 05:36:05,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883611151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:36:05,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1844229057] [2024-11-14 05:36:05,763 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-14 05:36:05,764 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:36:05,764 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:36:05,764 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:36:05,764 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:36:06,501 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 05:36:06,508 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 63 for LOIs [2024-11-14 05:36:06,518 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:36:15,460 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '338522#(and (<= 0 |ULTIMATE.start_main_~x1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y3~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~y2~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~x2~0#1_81| Int) (|v_ULTIMATE.start_main_~y1~0#1_287| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y1~0#1_287|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y1~0#1_287| |v_ULTIMATE.start_main_~x2~0#1_81|)) (<= |v_ULTIMATE.start_main_~x2~0#1_81| 2147483647))) (<= 0 |ULTIMATE.start_main_~y2~0#1|) (<= |ULTIMATE.start_main_~x1~0#1| 2147483647))' at error location [2024-11-14 05:36:15,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:36:15,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:36:15,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2024-11-14 05:36:15,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133121331] [2024-11-14 05:36:15,460 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:36:15,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-14 05:36:15,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:36:15,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-14 05:36:15,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=6965, Unknown=21, NotChecked=0, Total=7482 [2024-11-14 05:36:15,464 INFO L87 Difference]: Start difference. First operand 14915 states and 16168 transitions. Second operand has 61 states, 57 states have (on average 4.894736842105263) internal successors, (279), 54 states have internal predecessors, (279), 20 states have call successors, (20), 1 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:36:21,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:23,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:26,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:28,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:30,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:38,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:40,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:42,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:44,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:46,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:54,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:56,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:36:58,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:00,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:03,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:05,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:07,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:09,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:11,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:13,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:15,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:17,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:19,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:21,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:23,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:25,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:27,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:37,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:39,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:41,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:43,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:45,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:47,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:37:57,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:37:59,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:38:01,566 WARN L539 Checker$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 05:38:03,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:38:05,657 WARN L539 Checker$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 05:38:07,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:38:09,637 WARN L539 Checker$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 05:38:11,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:38:13,701 WARN L539 Checker$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 05:38:15,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:38:17,744 WARN L539 Checker$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 05:38:19,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:38:21,780 WARN L539 Checker$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 05:38:23,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:38:25,836 WARN L539 Checker$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 05:38:27,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:29,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:32,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:40,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:42,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:44,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:46,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:48,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:50,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:52,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:54,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:56,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:38:59,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:01,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:03,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:05,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:07,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:12,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:14,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:16,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:18,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:20,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:22,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:24,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:26,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:32,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:39:34,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:39:36,629 WARN L539 Checker$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 05:39:38,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:39:39,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:39:42,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:39:44,065 WARN L539 Checker$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 05:39:46,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:39:48,125 WARN L539 Checker$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 05:39:50,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:39:52,143 WARN L539 Checker$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 05:39:54,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:39:56,409 WARN L539 Checker$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 05:39:57,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:39:59,653 WARN L539 Checker$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 05:40:01,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:03,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:05,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:07,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:09,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:11,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:13,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:15,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:27,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:30,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:32,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:34,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:36,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:38,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:40,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:42,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:44,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:46,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:48,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:40:57,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:04,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:06,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:11,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:13,128 WARN L539 Checker$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 05:41:15,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:41:17,239 WARN L539 Checker$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 05:41:19,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:41:21,304 WARN L539 Checker$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 05:41:23,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:41:25,386 WARN L539 Checker$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 05:41:27,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:41:29,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:41:31,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:41:33,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:35,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:42,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:44,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:50,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:53,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:55,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:57,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:41:59,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:01,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:03,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:05,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:07,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:09,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:11,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:19,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:21,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:23,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:25,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:28,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:30,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:32,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:43,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:45,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:47,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:49,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:51,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:53,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:55,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:57,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:42:59,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:43:08,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:43:10,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:43:17,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:43:19,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:43:21,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:43:23,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:43:25,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:27,350 WARN L539 Checker$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 05:43:29,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:31,400 WARN L539 Checker$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 05:43:33,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:35,452 WARN L539 Checker$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 05:43:37,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:40,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:42,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:44,608 WARN L539 Checker$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 05:43:46,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:48,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:50,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:52,909 WARN L539 Checker$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 05:43:54,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:43:56,989 WARN L539 Checker$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 05:43:59,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:44:01,044 WARN L539 Checker$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 05:44:03,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:44:05,136 WARN L539 Checker$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 05:44:07,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:44:09,207 WARN L539 Checker$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 05:44:10,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:44:12,775 WARN L539 Checker$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 05:44:14,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 05:44:16,861 WARN L539 Checker$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 05:44:18,870 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]