./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje --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 7f12bfc45347636ba11cd9198984e4ca6a9fb471afaf773fd02be6e88eb44e8c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:26:46,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:26:46,562 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 01:26:46,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:26:46,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:26:46,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:26:46,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:26:46,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:26:46,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:26:46,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:26:46,614 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:26:46,615 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:26:46,616 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:26:46,616 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:26:46,619 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:26:46,619 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:26:46,620 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:26:46,620 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:26:46,620 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:26:46,621 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:26:46,621 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:26:46,626 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:26:46,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:26:46,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:26:46,627 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:26:46,627 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:26:46,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:26:46,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:26:46,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:26:46,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:26:46,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:26:46,629 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:26:46,629 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 01:26:46,632 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:26:46,632 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:26:46,633 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:26:46,633 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:26:46,633 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:26:46,634 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:26:46,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:26:46,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:46,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:26:46,637 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:26:46,637 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:26:46,637 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:26:46,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:26:46,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:26:46,638 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:26:46,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:26:46,639 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f12bfc45347636ba11cd9198984e4ca6a9fb471afaf773fd02be6e88eb44e8c [2024-11-09 01:26:46,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:26:47,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:26:47,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:26:47,005 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:26:47,006 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:26:47,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound5.c Unable to find full path for "g++" [2024-11-09 01:26:49,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:26:49,484 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:26:49,485 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound5.c [2024-11-09 01:26:49,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/data/0cdeeaf90/95a951f7dd404b20832d5e2312d5bc3d/FLAG90330c2c9 [2024-11-09 01:26:49,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/data/0cdeeaf90/95a951f7dd404b20832d5e2312d5bc3d [2024-11-09 01:26:49,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:26:49,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:26:49,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:49,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:26:49,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:26:49,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:49" (1/1) ... [2024-11-09 01:26:49,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd837eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:49, skipping insertion in model container [2024-11-09 01:26:49,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:49" (1/1) ... [2024-11-09 01:26:49,584 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:26:49,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:49,960 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:26:49,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:50,029 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:26:50,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50 WrapperNode [2024-11-09 01:26:50,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:50,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:50,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:26:50,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:26:50,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,101 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2024-11-09 01:26:50,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:50,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:26:50,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:26:50,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:26:50,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:26:50,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:26:50,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:26:50,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:26:50,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (1/1) ... [2024-11-09 01:26:50,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:50,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:50,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:26:50,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:26:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:26:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:26:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:26:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:26:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:26:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:26:50,350 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:26:50,353 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:26:51,095 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-09 01:26:51,095 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:26:51,174 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:26:51,174 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:26:51,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:26:51 BoogieIcfgContainer [2024-11-09 01:26:51,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:26:51,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:26:51,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:26:51,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:26:51,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:26:49" (1/3) ... [2024-11-09 01:26:51,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e951b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:26:51, skipping insertion in model container [2024-11-09 01:26:51,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50" (2/3) ... [2024-11-09 01:26:51,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e951b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:26:51, skipping insertion in model container [2024-11-09 01:26:51,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:26:51" (3/3) ... [2024-11-09 01:26:51,186 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound5.c [2024-11-09 01:26:51,207 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:26:51,207 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-11-09 01:26:51,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:26:51,289 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;@56991596, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:26:51,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-09 01:26:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 97 states have internal predecessors, (103), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:26:51,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 01:26:51,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:51,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 01:26:51,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:26:51,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:51,313 INFO L85 PathProgramCache]: Analyzing trace with hash 190340, now seen corresponding path program 1 times [2024-11-09 01:26:51,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:51,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140021885] [2024-11-09 01:26:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:51,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:51,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:51,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:51,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140021885] [2024-11-09 01:26:51,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140021885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:51,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:51,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:26:51,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769276092] [2024-11-09 01:26:51,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:51,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:26:51,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:51,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:26:51,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:26:51,572 INFO L87 Difference]: Start difference. First operand has 102 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 97 states have internal predecessors, (103), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:51,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:51,628 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2024-11-09 01:26:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:26:51,632 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 01:26:51,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:51,643 INFO L225 Difference]: With dead ends: 116 [2024-11-09 01:26:51,643 INFO L226 Difference]: Without dead ends: 99 [2024-11-09 01:26:51,648 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 [2024-11-09 01:26:51,655 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:51,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:26:51,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-09 01:26:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-09 01:26:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 52 states have (on average 1.9230769230769231) internal successors, (100), 95 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:26:51,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 104 transitions. [2024-11-09 01:26:51,707 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 104 transitions. Word has length 3 [2024-11-09 01:26:51,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:51,708 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 104 transitions. [2024-11-09 01:26:51,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:51,708 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 104 transitions. [2024-11-09 01:26:51,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 01:26:51,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:51,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 01:26:51,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:26:51,710 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:26:51,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:51,711 INFO L85 PathProgramCache]: Analyzing trace with hash 186851, now seen corresponding path program 1 times [2024-11-09 01:26:51,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:51,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231121999] [2024-11-09 01:26:51,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:51,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:51,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:51,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:51,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231121999] [2024-11-09 01:26:51,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231121999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:51,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:51,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:26:51,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76211853] [2024-11-09 01:26:51,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:51,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:26:51,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:51,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:26:51,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:26:51,847 INFO L87 Difference]: Start difference. First operand 99 states and 104 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:51,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:51,942 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2024-11-09 01:26:51,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:26:51,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 01:26:51,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:51,945 INFO L225 Difference]: With dead ends: 99 [2024-11-09 01:26:51,946 INFO L226 Difference]: Without dead ends: 98 [2024-11-09 01:26:51,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:26:51,950 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 103 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:51,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 190 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:26:51,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-09 01:26:51,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-09 01:26:51,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 94 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:26:51,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 103 transitions. [2024-11-09 01:26:51,970 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 103 transitions. Word has length 3 [2024-11-09 01:26:51,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:51,970 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 103 transitions. [2024-11-09 01:26:51,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:51,971 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 103 transitions. [2024-11-09 01:26:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 01:26:51,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:51,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 01:26:51,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:26:51,972 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:26:51,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:51,973 INFO L85 PathProgramCache]: Analyzing trace with hash 5792428, now seen corresponding path program 1 times [2024-11-09 01:26:51,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:51,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926756432] [2024-11-09 01:26:51,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:51,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:52,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:52,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926756432] [2024-11-09 01:26:52,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926756432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:52,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:52,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:26:52,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61568947] [2024-11-09 01:26:52,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:52,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:26:52,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:52,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:26:52,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:26:52,107 INFO L87 Difference]: Start difference. First operand 98 states and 103 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:52,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:52,188 INFO L93 Difference]: Finished difference Result 114 states and 119 transitions. [2024-11-09 01:26:52,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:26:52,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 01:26:52,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:52,191 INFO L225 Difference]: With dead ends: 114 [2024-11-09 01:26:52,194 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 01:26:52,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:26:52,196 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 3 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:52,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 290 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:26:52,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 01:26:52,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-09 01:26:52,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 56 states have (on average 1.8392857142857142) internal successors, (103), 98 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:26:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2024-11-09 01:26:52,225 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 4 [2024-11-09 01:26:52,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:52,226 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2024-11-09 01:26:52,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:52,228 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2024-11-09 01:26:52,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 01:26:52,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:52,229 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 01:26:52,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:26:52,230 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:26:52,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:52,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1271557678, now seen corresponding path program 1 times [2024-11-09 01:26:52,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:52,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560197287] [2024-11-09 01:26:52,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:52,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:26:52,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323578027] [2024-11-09 01:26:52,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:52,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:52,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:52,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:26:52,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:26:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:52,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:26:52,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:52,518 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:26:52,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:52,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560197287] [2024-11-09 01:26:52,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:26:52,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323578027] [2024-11-09 01:26:52,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323578027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:52,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:52,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 01:26:52,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69587489] [2024-11-09 01:26:52,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:52,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:26:52,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:52,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:26:52,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:52,531 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:53,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:53,016 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2024-11-09 01:26:53,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:26:53,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 01:26:53,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:53,019 INFO L225 Difference]: With dead ends: 143 [2024-11-09 01:26:53,019 INFO L226 Difference]: Without dead ends: 134 [2024-11-09 01:26:53,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:53,023 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 28 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:53,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 89 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:26:53,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-09 01:26:53,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 127. [2024-11-09 01:26:53,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 79 states have (on average 1.7721518987341771) internal successors, (140), 121 states have internal predecessors, (140), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:26:53,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2024-11-09 01:26:53,046 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 6 [2024-11-09 01:26:53,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:53,047 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2024-11-09 01:26:53,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:53,047 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2024-11-09 01:26:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 01:26:53,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:53,048 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:53,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 01:26:53,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:53,249 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:26:53,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:53,250 INFO L85 PathProgramCache]: Analyzing trace with hash 763582410, now seen corresponding path program 1 times [2024-11-09 01:26:53,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:53,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709464265] [2024-11-09 01:26:53,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:53,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:26:53,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131157967] [2024-11-09 01:26:53,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:53,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:53,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:53,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:26:53,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:26:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:53,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:26:53,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:53,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:26:53,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:53,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709464265] [2024-11-09 01:26:53,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:26:53,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131157967] [2024-11-09 01:26:53,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131157967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:53,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:53,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 01:26:53,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960062315] [2024-11-09 01:26:53,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:53,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:26:53,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:53,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:26:53,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:53,431 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:53,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:53,678 INFO L93 Difference]: Finished difference Result 181 states and 221 transitions. [2024-11-09 01:26:53,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:26:53,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 01:26:53,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:53,680 INFO L225 Difference]: With dead ends: 181 [2024-11-09 01:26:53,680 INFO L226 Difference]: Without dead ends: 167 [2024-11-09 01:26:53,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:53,682 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 34 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:53,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 85 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:26:53,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-09 01:26:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2024-11-09 01:26:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 108 states have (on average 1.7407407407407407) internal successors, (188), 150 states have internal predecessors, (188), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 01:26:53,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 198 transitions. [2024-11-09 01:26:53,697 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 198 transitions. Word has length 7 [2024-11-09 01:26:53,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:53,697 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 198 transitions. [2024-11-09 01:26:53,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 198 transitions. [2024-11-09 01:26:53,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 01:26:53,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:53,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:53,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 01:26:53,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:53,903 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:26:53,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:53,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2098749008, now seen corresponding path program 1 times [2024-11-09 01:26:53,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:53,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518970911] [2024-11-09 01:26:53,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:53,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:26:53,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1912329631] [2024-11-09 01:26:53,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:53,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:53,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:53,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:26:53,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:26:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:54,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:26:54,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:54,143 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:26:54,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:54,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518970911] [2024-11-09 01:26:54,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:26:54,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912329631] [2024-11-09 01:26:54,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912329631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:54,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:54,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 01:26:54,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456560305] [2024-11-09 01:26:54,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:54,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:26:54,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:54,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:26:54,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:54,146 INFO L87 Difference]: Start difference. First operand 157 states and 198 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:54,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:54,635 INFO L93 Difference]: Finished difference Result 169 states and 205 transitions. [2024-11-09 01:26:54,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:26:54,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 01:26:54,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:54,637 INFO L225 Difference]: With dead ends: 169 [2024-11-09 01:26:54,637 INFO L226 Difference]: Without dead ends: 168 [2024-11-09 01:26:54,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:54,638 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 24 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:54,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 92 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:26:54,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-09 01:26:54,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 157. [2024-11-09 01:26:54,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 150 states have internal predecessors, (187), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 01:26:54,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 197 transitions. [2024-11-09 01:26:54,666 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 197 transitions. Word has length 8 [2024-11-09 01:26:54,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:54,666 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 197 transitions. [2024-11-09 01:26:54,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:54,667 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 197 transitions. [2024-11-09 01:26:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 01:26:54,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:54,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:54,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 01:26:54,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 01:26:54,874 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:26:54,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:54,874 INFO L85 PathProgramCache]: Analyzing trace with hash -636709748, now seen corresponding path program 1 times [2024-11-09 01:26:54,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:54,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823264546] [2024-11-09 01:26:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:54,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:26:54,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563962553] [2024-11-09 01:26:54,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:54,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:54,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:54,891 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:26:54,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:26:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:54,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:26:54,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:55,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:55,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:26:55,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:55,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823264546] [2024-11-09 01:26:55,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:26:55,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563962553] [2024-11-09 01:26:55,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563962553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:55,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:55,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 01:26:55,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155193308] [2024-11-09 01:26:55,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:55,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:26:55,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:55,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:26:55,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:55,109 INFO L87 Difference]: Start difference. First operand 157 states and 197 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:55,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:55,480 INFO L93 Difference]: Finished difference Result 165 states and 197 transitions. [2024-11-09 01:26:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:26:55,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 01:26:55,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:55,482 INFO L225 Difference]: With dead ends: 165 [2024-11-09 01:26:55,482 INFO L226 Difference]: Without dead ends: 162 [2024-11-09 01:26:55,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:55,484 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 31 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:55,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 86 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:26:55,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-09 01:26:55,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 157. [2024-11-09 01:26:55,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 108 states have (on average 1.6944444444444444) internal successors, (183), 150 states have internal predecessors, (183), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 01:26:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2024-11-09 01:26:55,499 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 9 [2024-11-09 01:26:55,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:55,500 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2024-11-09 01:26:55,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2024-11-09 01:26:55,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 01:26:55,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:55,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:55,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 01:26:55,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:55,702 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:26:55,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:55,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1736834354, now seen corresponding path program 1 times [2024-11-09 01:26:55,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:55,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30163875] [2024-11-09 01:26:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:55,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:55,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:26:55,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:55,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30163875] [2024-11-09 01:26:55,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30163875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:55,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:55,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:26:55,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558626650] [2024-11-09 01:26:55,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:55,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:26:55,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:55,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:26:55,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:26:55,806 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:26:58,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:27:01,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:27:01,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:01,748 INFO L93 Difference]: Finished difference Result 265 states and 318 transitions. [2024-11-09 01:27:01,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:01,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-09 01:27:01,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:01,750 INFO L225 Difference]: With dead ends: 265 [2024-11-09 01:27:01,750 INFO L226 Difference]: Without dead ends: 264 [2024-11-09 01:27:01,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:01,752 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 87 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:01,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 170 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 174 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2024-11-09 01:27:01,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-09 01:27:01,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 181. [2024-11-09 01:27:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 131 states have (on average 1.6946564885496183) internal successors, (222), 173 states have internal predecessors, (222), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:27:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 234 transitions. [2024-11-09 01:27:01,769 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 234 transitions. Word has length 10 [2024-11-09 01:27:01,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:01,769 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 234 transitions. [2024-11-09 01:27:01,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:01,770 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 234 transitions. [2024-11-09 01:27:01,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 01:27:01,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:01,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:01,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 01:27:01,771 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:01,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1992709810, now seen corresponding path program 1 times [2024-11-09 01:27:01,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:01,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032258997] [2024-11-09 01:27:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:01,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:01,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:01,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032258997] [2024-11-09 01:27:01,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032258997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:01,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:01,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:27:01,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954894392] [2024-11-09 01:27:01,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:01,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:01,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:01,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:01,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:01,855 INFO L87 Difference]: Start difference. First operand 181 states and 234 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:04,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:04,796 INFO L93 Difference]: Finished difference Result 265 states and 316 transitions. [2024-11-09 01:27:04,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:04,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 01:27:04,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:04,798 INFO L225 Difference]: With dead ends: 265 [2024-11-09 01:27:04,799 INFO L226 Difference]: Without dead ends: 264 [2024-11-09 01:27:04,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:04,800 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 87 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:04,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 172 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 01:27:04,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-09 01:27:04,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 181. [2024-11-09 01:27:04,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 131 states have (on average 1.6793893129770991) internal successors, (220), 173 states have internal predecessors, (220), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:27:04,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 232 transitions. [2024-11-09 01:27:04,814 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 232 transitions. Word has length 11 [2024-11-09 01:27:04,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:04,815 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 232 transitions. [2024-11-09 01:27:04,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:04,815 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 232 transitions. [2024-11-09 01:27:04,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 01:27:04,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:04,816 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:04,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 01:27:04,817 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:04,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:04,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1644461900, now seen corresponding path program 1 times [2024-11-09 01:27:04,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:04,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935679692] [2024-11-09 01:27:04,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:04,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:27:04,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969252803] [2024-11-09 01:27:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:04,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:04,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:04,847 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:04,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:27:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:04,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:27:04,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:05,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:05,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:05,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935679692] [2024-11-09 01:27:05,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:27:05,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969252803] [2024-11-09 01:27:05,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969252803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:05,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:05,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 01:27:05,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418250268] [2024-11-09 01:27:05,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:05,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:27:05,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:05,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:27:05,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:05,056 INFO L87 Difference]: Start difference. First operand 181 states and 232 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:05,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:05,089 INFO L93 Difference]: Finished difference Result 181 states and 232 transitions. [2024-11-09 01:27:05,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:27:05,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 01:27:05,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:05,092 INFO L225 Difference]: With dead ends: 181 [2024-11-09 01:27:05,092 INFO L226 Difference]: Without dead ends: 179 [2024-11-09 01:27:05,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:05,093 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 83 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:05,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 95 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:27:05,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-09 01:27:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-09 01:27:05,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 131 states have (on average 1.6259541984732824) internal successors, (213), 171 states have internal predecessors, (213), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:27:05,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 225 transitions. [2024-11-09 01:27:05,108 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 225 transitions. Word has length 12 [2024-11-09 01:27:05,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:05,108 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 225 transitions. [2024-11-09 01:27:05,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:05,109 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 225 transitions. [2024-11-09 01:27:05,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 01:27:05,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:05,110 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:05,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 01:27:05,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:05,315 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:05,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:05,316 INFO L85 PathProgramCache]: Analyzing trace with hash 561288720, now seen corresponding path program 1 times [2024-11-09 01:27:05,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:05,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212381130] [2024-11-09 01:27:05,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:05,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:27:05,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071310684] [2024-11-09 01:27:05,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:05,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:05,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:05,333 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:05,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 01:27:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:05,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:27:05,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:05,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:05,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:05,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:05,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212381130] [2024-11-09 01:27:05,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:27:05,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071310684] [2024-11-09 01:27:05,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071310684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:05,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:05,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 01:27:05,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938429290] [2024-11-09 01:27:05,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:05,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:27:05,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:05,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:27:05,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:05,563 INFO L87 Difference]: Start difference. First operand 179 states and 225 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:05,591 INFO L93 Difference]: Finished difference Result 179 states and 225 transitions. [2024-11-09 01:27:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:27:05,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 01:27:05,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:05,593 INFO L225 Difference]: With dead ends: 179 [2024-11-09 01:27:05,593 INFO L226 Difference]: Without dead ends: 175 [2024-11-09 01:27:05,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:05,594 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 82 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:05,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 95 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:27:05,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-09 01:27:05,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-09 01:27:05,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 129 states have (on average 1.5813953488372092) internal successors, (204), 167 states have internal predecessors, (204), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 01:27:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 216 transitions. [2024-11-09 01:27:05,608 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 216 transitions. Word has length 13 [2024-11-09 01:27:05,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:05,608 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 216 transitions. [2024-11-09 01:27:05,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:05,609 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 216 transitions. [2024-11-09 01:27:05,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 01:27:05,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:05,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:05,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:05,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:05,814 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:05,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:05,815 INFO L85 PathProgramCache]: Analyzing trace with hash -709510710, now seen corresponding path program 1 times [2024-11-09 01:27:05,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:05,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335585379] [2024-11-09 01:27:05,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:05,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:27:05,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367815089] [2024-11-09 01:27:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:05,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:05,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:05,874 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:05,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 01:27:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:05,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:27:05,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:06,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:06,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:06,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:06,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335585379] [2024-11-09 01:27:06,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:27:06,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367815089] [2024-11-09 01:27:06,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367815089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:06,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:06,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:27:06,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35342608] [2024-11-09 01:27:06,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:06,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:27:06,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:06,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:27:06,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:06,090 INFO L87 Difference]: Start difference. First operand 175 states and 216 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:06,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:06,497 INFO L93 Difference]: Finished difference Result 230 states and 293 transitions. [2024-11-09 01:27:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:27:06,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-09 01:27:06,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:06,499 INFO L225 Difference]: With dead ends: 230 [2024-11-09 01:27:06,500 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 01:27:06,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:06,501 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 23 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:06,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 102 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:27:06,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 01:27:06,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 210. [2024-11-09 01:27:06,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 163 states have (on average 1.5828220858895705) internal successors, (258), 201 states have internal predecessors, (258), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 01:27:06,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 272 transitions. [2024-11-09 01:27:06,512 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 272 transitions. Word has length 23 [2024-11-09 01:27:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:06,513 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 272 transitions. [2024-11-09 01:27:06,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 272 transitions. [2024-11-09 01:27:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 01:27:06,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:06,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:06,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 01:27:06,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 01:27:06,715 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:06,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash -935118100, now seen corresponding path program 1 times [2024-11-09 01:27:06,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:06,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261113963] [2024-11-09 01:27:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:06,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:06,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:06,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:06,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261113963] [2024-11-09 01:27:06,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261113963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:06,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:06,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:27:06,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51133081] [2024-11-09 01:27:06,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:06,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:06,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:06,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:06,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:06,815 INFO L87 Difference]: Start difference. First operand 210 states and 272 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:07,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:07,590 INFO L93 Difference]: Finished difference Result 285 states and 348 transitions. [2024-11-09 01:27:07,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:07,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-09 01:27:07,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:07,592 INFO L225 Difference]: With dead ends: 285 [2024-11-09 01:27:07,592 INFO L226 Difference]: Without dead ends: 284 [2024-11-09 01:27:07,593 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 [2024-11-09 01:27:07,593 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 109 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:07,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 181 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 01:27:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-09 01:27:07,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 220. [2024-11-09 01:27:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 173 states have (on average 1.5780346820809248) internal successors, (273), 211 states have internal predecessors, (273), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 01:27:07,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 287 transitions. [2024-11-09 01:27:07,607 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 287 transitions. Word has length 24 [2024-11-09 01:27:07,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:07,607 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 287 transitions. [2024-11-09 01:27:07,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:07,608 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 287 transitions. [2024-11-09 01:27:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 01:27:07,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:07,611 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:07,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 01:27:07,611 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:07,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:07,611 INFO L85 PathProgramCache]: Analyzing trace with hash -519995411, now seen corresponding path program 1 times [2024-11-09 01:27:07,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:07,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127139024] [2024-11-09 01:27:07,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:07,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:27:07,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [746708961] [2024-11-09 01:27:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:07,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:07,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:07,651 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:07,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 01:27:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:07,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:27:07,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:07,847 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:07,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:07,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127139024] [2024-11-09 01:27:07,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:27:07,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746708961] [2024-11-09 01:27:07,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746708961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:07,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:07,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:27:07,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111990105] [2024-11-09 01:27:07,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:07,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:27:07,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:07,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:27:07,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:07,850 INFO L87 Difference]: Start difference. First operand 220 states and 287 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:08,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:08,266 INFO L93 Difference]: Finished difference Result 285 states and 384 transitions. [2024-11-09 01:27:08,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:27:08,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-09 01:27:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:08,268 INFO L225 Difference]: With dead ends: 285 [2024-11-09 01:27:08,269 INFO L226 Difference]: Without dead ends: 279 [2024-11-09 01:27:08,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:08,270 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 38 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:08,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 72 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:27:08,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-09 01:27:08,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 262. [2024-11-09 01:27:08,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 214 states have (on average 1.6168224299065421) internal successors, (346), 252 states have internal predecessors, (346), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:27:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 362 transitions. [2024-11-09 01:27:08,284 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 362 transitions. Word has length 24 [2024-11-09 01:27:08,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:08,284 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 362 transitions. [2024-11-09 01:27:08,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:08,284 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 362 transitions. [2024-11-09 01:27:08,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 01:27:08,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:08,285 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:08,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 01:27:08,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 01:27:08,490 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:08,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1076110078, now seen corresponding path program 1 times [2024-11-09 01:27:08,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:08,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290085178] [2024-11-09 01:27:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:08,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:08,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290085178] [2024-11-09 01:27:08,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290085178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:08,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:08,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:27:08,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908392043] [2024-11-09 01:27:08,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:08,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:08,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:08,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:08,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:08,682 INFO L87 Difference]: Start difference. First operand 262 states and 362 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:09,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:09,834 INFO L93 Difference]: Finished difference Result 335 states and 436 transitions. [2024-11-09 01:27:09,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:09,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 01:27:09,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:09,837 INFO L225 Difference]: With dead ends: 335 [2024-11-09 01:27:09,837 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 01:27:09,837 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 [2024-11-09 01:27:09,838 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 108 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:09,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 184 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 01:27:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 01:27:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 264. [2024-11-09 01:27:09,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 216 states have (on average 1.6111111111111112) internal successors, (348), 254 states have internal predecessors, (348), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:27:09,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 364 transitions. [2024-11-09 01:27:09,854 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 364 transitions. Word has length 25 [2024-11-09 01:27:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:09,854 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 364 transitions. [2024-11-09 01:27:09,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 364 transitions. [2024-11-09 01:27:09,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 01:27:09,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:09,856 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:09,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 01:27:09,857 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:09,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:09,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1060011564, now seen corresponding path program 1 times [2024-11-09 01:27:09,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:09,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068046322] [2024-11-09 01:27:09,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:09,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:09,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:09,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:09,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068046322] [2024-11-09 01:27:09,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068046322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:09,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:09,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:27:09,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405387894] [2024-11-09 01:27:09,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:09,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:09,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:09,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:09,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:09,992 INFO L87 Difference]: Start difference. First operand 264 states and 364 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:10,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:10,878 INFO L93 Difference]: Finished difference Result 335 states and 434 transitions. [2024-11-09 01:27:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:10,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 01:27:10,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:10,880 INFO L225 Difference]: With dead ends: 335 [2024-11-09 01:27:10,880 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 01:27:10,880 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 [2024-11-09 01:27:10,881 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 92 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:10,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 174 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:27:10,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 01:27:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 273. [2024-11-09 01:27:10,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 225 states have (on average 1.6088888888888888) internal successors, (362), 263 states have internal predecessors, (362), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:27:10,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 378 transitions. [2024-11-09 01:27:10,899 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 378 transitions. Word has length 25 [2024-11-09 01:27:10,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:10,899 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 378 transitions. [2024-11-09 01:27:10,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:10,900 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 378 transitions. [2024-11-09 01:27:10,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 01:27:10,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:10,901 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:10,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 01:27:10,901 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:10,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:10,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1474179948, now seen corresponding path program 1 times [2024-11-09 01:27:10,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:10,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669036897] [2024-11-09 01:27:10,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:10,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:11,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:11,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669036897] [2024-11-09 01:27:11,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669036897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:11,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:11,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:27:11,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965947647] [2024-11-09 01:27:11,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:11,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:27:11,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:11,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:27:11,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:27:11,100 INFO L87 Difference]: Start difference. First operand 273 states and 378 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:12,028 INFO L93 Difference]: Finished difference Result 356 states and 513 transitions. [2024-11-09 01:27:12,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:27:12,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 01:27:12,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:12,031 INFO L225 Difference]: With dead ends: 356 [2024-11-09 01:27:12,031 INFO L226 Difference]: Without dead ends: 354 [2024-11-09 01:27:12,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:27:12,032 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 130 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:12,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 84 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:27:12,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-09 01:27:12,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 279. [2024-11-09 01:27:12,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 231 states have (on average 1.5974025974025974) internal successors, (369), 269 states have internal predecessors, (369), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:27:12,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 385 transitions. [2024-11-09 01:27:12,049 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 385 transitions. Word has length 25 [2024-11-09 01:27:12,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:12,049 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 385 transitions. [2024-11-09 01:27:12,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:12,050 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 385 transitions. [2024-11-09 01:27:12,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 01:27:12,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:12,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:12,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 01:27:12,051 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:12,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1499379761, now seen corresponding path program 1 times [2024-11-09 01:27:12,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:12,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50522468] [2024-11-09 01:27:12,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:12,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:12,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:12,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50522468] [2024-11-09 01:27:12,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50522468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:12,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:12,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:27:12,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225170889] [2024-11-09 01:27:12,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:12,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:12,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:12,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:12,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:12,334 INFO L87 Difference]: Start difference. First operand 279 states and 385 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:13,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:13,879 INFO L93 Difference]: Finished difference Result 335 states and 430 transitions. [2024-11-09 01:27:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:13,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-09 01:27:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:13,881 INFO L225 Difference]: With dead ends: 335 [2024-11-09 01:27:13,881 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 01:27:13,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:13,883 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 102 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:13,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 188 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 01:27:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 01:27:13,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 281. [2024-11-09 01:27:13,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 233 states have (on average 1.592274678111588) internal successors, (371), 271 states have internal predecessors, (371), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:27:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 387 transitions. [2024-11-09 01:27:13,899 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 387 transitions. Word has length 26 [2024-11-09 01:27:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:13,899 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 387 transitions. [2024-11-09 01:27:13,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 387 transitions. [2024-11-09 01:27:13,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 01:27:13,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:13,900 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:13,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 01:27:13,901 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:13,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:13,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1545061731, now seen corresponding path program 1 times [2024-11-09 01:27:13,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:13,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420845473] [2024-11-09 01:27:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:13,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:14,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:14,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420845473] [2024-11-09 01:27:14,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420845473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:14,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:14,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:27:14,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473285428] [2024-11-09 01:27:14,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:14,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:27:14,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:27:14,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:27:14,069 INFO L87 Difference]: Start difference. First operand 281 states and 387 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:15,395 INFO L93 Difference]: Finished difference Result 290 states and 394 transitions. [2024-11-09 01:27:15,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:27:15,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-09 01:27:15,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:15,399 INFO L225 Difference]: With dead ends: 290 [2024-11-09 01:27:15,399 INFO L226 Difference]: Without dead ends: 288 [2024-11-09 01:27:15,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:27:15,400 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 101 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:15,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 114 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 01:27:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-09 01:27:15,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 281. [2024-11-09 01:27:15,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 233 states have (on average 1.5793991416309012) internal successors, (368), 271 states have internal predecessors, (368), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 01:27:15,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 384 transitions. [2024-11-09 01:27:15,414 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 384 transitions. Word has length 26 [2024-11-09 01:27:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:15,416 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 384 transitions. [2024-11-09 01:27:15,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:15,416 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 384 transitions. [2024-11-09 01:27:15,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 01:27:15,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:15,418 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] [2024-11-09 01:27:15,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 01:27:15,418 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:15,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:15,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1904068239, now seen corresponding path program 1 times [2024-11-09 01:27:15,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:15,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108419273] [2024-11-09 01:27:15,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:15,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:15,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:15,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108419273] [2024-11-09 01:27:15,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108419273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:27:15,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413622101] [2024-11-09 01:27:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:15,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:15,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:15,517 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:15,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 01:27:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:15,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:27:15,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:15,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:15,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:15,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413622101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:15,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:27:15,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 01:27:15,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490757114] [2024-11-09 01:27:15,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:15,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:27:15,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:15,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:27:15,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:27:15,677 INFO L87 Difference]: Start difference. First operand 281 states and 384 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:15,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:15,762 INFO L93 Difference]: Finished difference Result 294 states and 397 transitions. [2024-11-09 01:27:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:27:15,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-09 01:27:15,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:15,765 INFO L225 Difference]: With dead ends: 294 [2024-11-09 01:27:15,766 INFO L226 Difference]: Without dead ends: 293 [2024-11-09 01:27:15,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-09 01:27:15,768 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 77 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:15,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 297 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:27:15,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-09 01:27:15,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 288. [2024-11-09 01:27:15,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 238 states have (on average 1.546218487394958) internal successors, (368), 277 states have internal predecessors, (368), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:27:15,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 388 transitions. [2024-11-09 01:27:15,789 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 388 transitions. Word has length 27 [2024-11-09 01:27:15,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:15,789 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 388 transitions. [2024-11-09 01:27:15,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:15,790 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 388 transitions. [2024-11-09 01:27:15,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 01:27:15,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:15,790 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:15,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:15,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:15,991 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:15,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:15,992 INFO L85 PathProgramCache]: Analyzing trace with hash 230621104, now seen corresponding path program 1 times [2024-11-09 01:27:15,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:15,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952736589] [2024-11-09 01:27:15,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:15,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:27:16,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874562155] [2024-11-09 01:27:16,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:16,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:16,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:16,018 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:16,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 01:27:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:16,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:27:16,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:16,307 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:16,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:16,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952736589] [2024-11-09 01:27:16,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:27:16,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874562155] [2024-11-09 01:27:16,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874562155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:16,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:16,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:27:16,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232481698] [2024-11-09 01:27:16,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:16,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:27:16,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:16,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:27:16,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:27:16,311 INFO L87 Difference]: Start difference. First operand 288 states and 388 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:17,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:17,222 INFO L93 Difference]: Finished difference Result 332 states and 437 transitions. [2024-11-09 01:27:17,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:27:17,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-09 01:27:17,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:17,225 INFO L225 Difference]: With dead ends: 332 [2024-11-09 01:27:17,226 INFO L226 Difference]: Without dead ends: 322 [2024-11-09 01:27:17,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:27:17,227 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 105 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:17,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 129 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:27:17,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-09 01:27:17,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 280. [2024-11-09 01:27:17,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 230 states have (on average 1.508695652173913) internal successors, (347), 269 states have internal predecessors, (347), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:27:17,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 367 transitions. [2024-11-09 01:27:17,246 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 367 transitions. Word has length 29 [2024-11-09 01:27:17,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:17,247 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 367 transitions. [2024-11-09 01:27:17,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:27:17,247 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 367 transitions. [2024-11-09 01:27:17,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 01:27:17,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:17,248 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] [2024-11-09 01:27:17,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 01:27:17,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:17,452 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:27:17,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:17,452 INFO L85 PathProgramCache]: Analyzing trace with hash 153511249, now seen corresponding path program 1 times [2024-11-09 01:27:17,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:17,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562057233] [2024-11-09 01:27:17,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:17,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:27:17,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064333157] [2024-11-09 01:27:17,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:17,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:17,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:17,483 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:17,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 01:27:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:17,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:27:17,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:18,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:18,857 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:22,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:22,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562057233] [2024-11-09 01:27:22,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:27:22,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064333157] [2024-11-09 01:27:22,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064333157] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:27:22,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2122240357] [2024-11-09 01:27:22,181 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:27:22,181 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:27:22,185 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:27:22,191 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:27:22,192 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:27:28,507 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 01:27:28,700 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:28:01,787 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10598#(exists ((|v_ULTIMATE.start_main_~b~0#1_91| Int) (|v_ULTIMATE.start_main_~a~0#1_91| Int)) (and (exists ((|v_ULTIMATE.start_main_#t~post6#1_29| Int)) (and (<= 1 |#StackHeapBarrier|) (= (+ |v_ULTIMATE.start_main_#t~post6#1_29| 1) ~counter~0) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |v_ULTIMATE.start_main_#t~post6#1_29| 4) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))) (<= (+ (* |v_ULTIMATE.start_main_~b~0#1_91| |v_ULTIMATE.start_main_~a~0#1_91|) 9223372036854775809) 0)))' at error location [2024-11-09 01:28:01,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:28:01,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:28:01,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-11-09 01:28:01,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13291907] [2024-11-09 01:28:01,788 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:28:01,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:28:01,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:01,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:28:01,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=762, Unknown=8, NotChecked=0, Total=930 [2024-11-09 01:28:01,790 INFO L87 Difference]: Start difference. First operand 280 states and 367 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:28:07,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:07,222 INFO L93 Difference]: Finished difference Result 568 states and 793 transitions. [2024-11-09 01:28:07,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 01:28:07,223 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-09 01:28:07,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:07,225 INFO L225 Difference]: With dead ends: 568 [2024-11-09 01:28:07,225 INFO L226 Difference]: Without dead ends: 543 [2024-11-09 01:28:07,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 48 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 35.7s TimeCoverageRelationStatistics Valid=330, Invalid=1468, Unknown=8, NotChecked=0, Total=1806 [2024-11-09 01:28:07,227 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 385 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:07,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 117 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 01:28:07,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-09 01:28:07,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 349. [2024-11-09 01:28:07,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 299 states have (on average 1.4816053511705685) internal successors, (443), 336 states have internal predecessors, (443), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:28:07,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 465 transitions. [2024-11-09 01:28:07,258 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 465 transitions. Word has length 29 [2024-11-09 01:28:07,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:07,259 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 465 transitions. [2024-11-09 01:28:07,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:28:07,259 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 465 transitions. [2024-11-09 01:28:07,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 01:28:07,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:07,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:28:07,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 01:28:07,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-09 01:28:07,464 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:28:07,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:07,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1440680223, now seen corresponding path program 1 times [2024-11-09 01:28:07,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:07,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184316903] [2024-11-09 01:28:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:07,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:28:07,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645238125] [2024-11-09 01:28:07,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:07,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:28:07,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:28:07,486 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:28:07,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 01:28:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:07,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:28:07,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:28:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:28:07,799 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:28:07,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:07,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184316903] [2024-11-09 01:28:07,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:28:07,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645238125] [2024-11-09 01:28:07,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645238125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:28:07,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:28:07,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:28:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936520727] [2024-11-09 01:28:07,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:07,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:28:07,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:07,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:28:07,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:28:07,803 INFO L87 Difference]: Start difference. First operand 349 states and 465 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:28:08,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:08,581 INFO L93 Difference]: Finished difference Result 390 states and 513 transitions. [2024-11-09 01:28:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:28:08,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-09 01:28:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:08,583 INFO L225 Difference]: With dead ends: 390 [2024-11-09 01:28:08,583 INFO L226 Difference]: Without dead ends: 385 [2024-11-09 01:28:08,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:28:08,585 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 71 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:08,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 103 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:28:08,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-09 01:28:08,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 341. [2024-11-09 01:28:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 291 states have (on average 1.4673539518900343) internal successors, (427), 328 states have internal predecessors, (427), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 01:28:08,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 449 transitions. [2024-11-09 01:28:08,615 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 449 transitions. Word has length 30 [2024-11-09 01:28:08,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:08,615 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 449 transitions. [2024-11-09 01:28:08,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:28:08,616 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 449 transitions. [2024-11-09 01:28:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 01:28:08,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:08,617 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] [2024-11-09 01:28:08,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 01:28:08,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 01:28:08,821 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:28:08,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:08,823 INFO L85 PathProgramCache]: Analyzing trace with hash 463881479, now seen corresponding path program 1 times [2024-11-09 01:28:08,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:08,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806823652] [2024-11-09 01:28:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:08,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:28:08,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411641650] [2024-11-09 01:28:08,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:08,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:28:08,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:28:08,849 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:28:08,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 01:28:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:08,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:28:08,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:28:09,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:28:09,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:28:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:28:12,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:12,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806823652] [2024-11-09 01:28:12,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:28:12,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411641650] [2024-11-09 01:28:12,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411641650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:28:12,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1655061272] [2024-11-09 01:28:12,413 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:28:12,413 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:28:12,413 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:28:12,414 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:28:12,414 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:28:16,028 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 01:28:16,255 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:28:38,570 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12697#(exists ((|v_ULTIMATE.start_main_~a~0#1_99| Int) (|v_ULTIMATE.start_main_~b~0#1_99| Int)) (and (exists ((|v_ULTIMATE.start_main_#t~post6#1_36| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_#t~post6#1_36| 4) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (= ~counter~0 (+ |v_ULTIMATE.start_main_#t~post6#1_36| 1)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~b~0#1_99| |v_ULTIMATE.start_main_~a~0#1_99|))))' at error location [2024-11-09 01:28:38,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:28:38,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:28:38,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-11-09 01:28:38,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482435255] [2024-11-09 01:28:38,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:28:38,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:28:38,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:38,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:28:38,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=769, Unknown=5, NotChecked=0, Total=930 [2024-11-09 01:28:38,573 INFO L87 Difference]: Start difference. First operand 341 states and 449 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:28:46,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-09 01:28:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:50,149 INFO L93 Difference]: Finished difference Result 554 states and 747 transitions. [2024-11-09 01:28:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 01:28:50,150 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2024-11-09 01:28:50,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:50,152 INFO L225 Difference]: With dead ends: 554 [2024-11-09 01:28:50,153 INFO L226 Difference]: Without dead ends: 520 [2024-11-09 01:28:50,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 51 SyntacticMatches, 8 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=294, Invalid=1341, Unknown=5, NotChecked=0, Total=1640 [2024-11-09 01:28:50,154 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 334 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:50,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 142 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2024-11-09 01:28:50,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-09 01:28:50,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 373. [2024-11-09 01:28:50,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 324 states have (on average 1.4104938271604939) internal successors, (457), 360 states have internal predecessors, (457), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:28:50,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 477 transitions. [2024-11-09 01:28:50,191 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 477 transitions. Word has length 30 [2024-11-09 01:28:50,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:50,191 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 477 transitions. [2024-11-09 01:28:50,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:28:50,191 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 477 transitions. [2024-11-09 01:28:50,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 01:28:50,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:50,192 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:28:50,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 01:28:50,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 01:28:50,393 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:28:50,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:50,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1711413806, now seen corresponding path program 1 times [2024-11-09 01:28:50,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:50,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684133553] [2024-11-09 01:28:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:50,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:28:50,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:50,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684133553] [2024-11-09 01:28:50,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684133553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:28:50,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:28:50,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:28:50,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522008375] [2024-11-09 01:28:50,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:50,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:28:50,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:50,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:28:50,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:28:50,502 INFO L87 Difference]: Start difference. First operand 373 states and 477 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:28:51,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:51,593 INFO L93 Difference]: Finished difference Result 412 states and 511 transitions. [2024-11-09 01:28:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:28:51,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-11-09 01:28:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:51,596 INFO L225 Difference]: With dead ends: 412 [2024-11-09 01:28:51,597 INFO L226 Difference]: Without dead ends: 411 [2024-11-09 01:28:51,598 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 [2024-11-09 01:28:51,603 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 68 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:51,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 148 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 01:28:51,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-09 01:28:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 394. [2024-11-09 01:28:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 345 states have (on average 1.4057971014492754) internal successors, (485), 381 states have internal predecessors, (485), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:28:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 505 transitions. [2024-11-09 01:28:51,649 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 505 transitions. Word has length 31 [2024-11-09 01:28:51,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:51,649 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 505 transitions. [2024-11-09 01:28:51,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:28:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 505 transitions. [2024-11-09 01:28:51,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 01:28:51,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:51,650 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] [2024-11-09 01:28:51,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 01:28:51,650 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:28:51,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:51,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1495424019, now seen corresponding path program 1 times [2024-11-09 01:28:51,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:51,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811233422] [2024-11-09 01:28:51,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:51,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:28:51,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856304407] [2024-11-09 01:28:51,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:51,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:28:51,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:28:51,685 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:28:51,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 01:28:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:51,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:28:51,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:28:52,328 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:28:52,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:28:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:28:56,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:56,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811233422] [2024-11-09 01:28:56,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:28:56,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856304407] [2024-11-09 01:28:56,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856304407] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:28:56,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:28:56,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 01:28:56,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568002697] [2024-11-09 01:28:56,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:56,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:28:56,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:28:56,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-09 01:28:56,489 INFO L87 Difference]: Start difference. First operand 394 states and 505 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:00,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:00,930 INFO L93 Difference]: Finished difference Result 409 states and 521 transitions. [2024-11-09 01:29:00,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:29:00,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-11-09 01:29:00,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:00,932 INFO L225 Difference]: With dead ends: 409 [2024-11-09 01:29:00,932 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 01:29:00,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-09 01:29:00,933 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 127 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:00,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 74 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 01:29:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 01:29:00,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 401. [2024-11-09 01:29:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 352 states have (on average 1.3920454545454546) internal successors, (490), 388 states have internal predecessors, (490), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:29:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 510 transitions. [2024-11-09 01:29:00,968 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 510 transitions. Word has length 31 [2024-11-09 01:29:00,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:00,968 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 510 transitions. [2024-11-09 01:29:00,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:00,969 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 510 transitions. [2024-11-09 01:29:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 01:29:00,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:00,969 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] [2024-11-09 01:29:00,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 01:29:01,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:01,174 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:29:01,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:01,174 INFO L85 PathProgramCache]: Analyzing trace with hash 987820243, now seen corresponding path program 1 times [2024-11-09 01:29:01,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:01,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440877578] [2024-11-09 01:29:01,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:01,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:29:01,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359721527] [2024-11-09 01:29:01,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:01,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:01,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:29:01,210 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:29:01,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 01:29:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:01,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:29:01,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:01,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:29:01,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:01,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440877578] [2024-11-09 01:29:01,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:29:01,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359721527] [2024-11-09 01:29:01,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359721527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:01,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:29:01,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:29:01,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003310257] [2024-11-09 01:29:01,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:01,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:29:01,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:01,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:29:01,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:29:01,530 INFO L87 Difference]: Start difference. First operand 401 states and 510 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:01,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:01,936 INFO L93 Difference]: Finished difference Result 405 states and 512 transitions. [2024-11-09 01:29:01,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:29:01,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-09 01:29:01,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:01,939 INFO L225 Difference]: With dead ends: 405 [2024-11-09 01:29:01,939 INFO L226 Difference]: Without dead ends: 403 [2024-11-09 01:29:01,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:29:01,940 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 35 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:01,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 115 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:29:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-09 01:29:01,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 401. [2024-11-09 01:29:01,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 352 states have (on average 1.3863636363636365) internal successors, (488), 388 states have internal predecessors, (488), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:29:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 508 transitions. [2024-11-09 01:29:01,980 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 508 transitions. Word has length 32 [2024-11-09 01:29:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:01,980 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 508 transitions. [2024-11-09 01:29:01,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:01,980 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 508 transitions. [2024-11-09 01:29:01,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 01:29:01,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:01,981 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:02,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 01:29:02,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 01:29:02,185 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:29:02,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:02,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1514220285, now seen corresponding path program 1 times [2024-11-09 01:29:02,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:02,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038480114] [2024-11-09 01:29:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:02,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:02,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:02,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038480114] [2024-11-09 01:29:02,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038480114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:02,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:29:02,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:29:02,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508560494] [2024-11-09 01:29:02,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:02,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:29:02,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:02,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:29:02,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:29:02,461 INFO L87 Difference]: Start difference. First operand 401 states and 508 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:03,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:03,311 INFO L93 Difference]: Finished difference Result 418 states and 512 transitions. [2024-11-09 01:29:03,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:29:03,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-09 01:29:03,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:03,312 INFO L225 Difference]: With dead ends: 418 [2024-11-09 01:29:03,313 INFO L226 Difference]: Without dead ends: 417 [2024-11-09 01:29:03,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:29:03,313 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 59 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:03,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 157 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 01:29:03,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-09 01:29:03,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 403. [2024-11-09 01:29:03,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 354 states have (on average 1.384180790960452) internal successors, (490), 390 states have internal predecessors, (490), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:29:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 510 transitions. [2024-11-09 01:29:03,352 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 510 transitions. Word has length 32 [2024-11-09 01:29:03,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:03,352 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 510 transitions. [2024-11-09 01:29:03,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:03,352 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 510 transitions. [2024-11-09 01:29:03,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 01:29:03,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:03,353 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] [2024-11-09 01:29:03,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 01:29:03,353 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:29:03,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:03,354 INFO L85 PathProgramCache]: Analyzing trace with hash -886495607, now seen corresponding path program 1 times [2024-11-09 01:29:03,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:03,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093416816] [2024-11-09 01:29:03,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:03,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:29:03,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671453061] [2024-11-09 01:29:03,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:03,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:03,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:29:03,373 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:29:03,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 01:29:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:03,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:29:03,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:03,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:03,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:29:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:06,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:06,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093416816] [2024-11-09 01:29:06,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:29:06,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671453061] [2024-11-09 01:29:06,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671453061] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:29:06,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:29:06,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 01:29:06,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304630787] [2024-11-09 01:29:06,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:06,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:29:06,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:06,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:29:06,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-09 01:29:06,446 INFO L87 Difference]: Start difference. First operand 403 states and 510 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:09,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:09,950 INFO L93 Difference]: Finished difference Result 413 states and 520 transitions. [2024-11-09 01:29:09,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:29:09,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-09 01:29:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:09,952 INFO L225 Difference]: With dead ends: 413 [2024-11-09 01:29:09,952 INFO L226 Difference]: Without dead ends: 412 [2024-11-09 01:29:09,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-09 01:29:09,953 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 111 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:09,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 76 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 01:29:09,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-09 01:29:09,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 404. [2024-11-09 01:29:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 355 states have (on average 1.3774647887323943) internal successors, (489), 391 states have internal predecessors, (489), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:29:09,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 509 transitions. [2024-11-09 01:29:09,990 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 509 transitions. Word has length 32 [2024-11-09 01:29:09,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:09,990 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 509 transitions. [2024-11-09 01:29:09,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 509 transitions. [2024-11-09 01:29:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 01:29:09,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:09,991 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, 1] [2024-11-09 01:29:10,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 01:29:10,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 01:29:10,196 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:29:10,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:10,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1994976994, now seen corresponding path program 1 times [2024-11-09 01:29:10,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:10,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781099387] [2024-11-09 01:29:10,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:10,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:29:10,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1229279620] [2024-11-09 01:29:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:10,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:10,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:29:10,220 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:29:10,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 01:29:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:10,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 01:29:10,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:11,144 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:29:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:13,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:13,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781099387] [2024-11-09 01:29:13,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:29:13,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229279620] [2024-11-09 01:29:13,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229279620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:29:13,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1331963054] [2024-11-09 01:29:13,112 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-09 01:29:13,112 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:29:13,113 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:29:13,113 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:29:13,113 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:29:16,352 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-09 01:29:16,442 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:29:26,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1331963054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:26,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:29:26,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7, 7] total 23 [2024-11-09 01:29:26,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016659577] [2024-11-09 01:29:26,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:26,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 01:29:26,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:26,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 01:29:26,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2024-11-09 01:29:26,529 INFO L87 Difference]: Start difference. First operand 404 states and 509 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:28,164 INFO L93 Difference]: Finished difference Result 417 states and 515 transitions. [2024-11-09 01:29:28,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 01:29:28,164 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-09 01:29:28,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:28,166 INFO L225 Difference]: With dead ends: 417 [2024-11-09 01:29:28,166 INFO L226 Difference]: Without dead ends: 411 [2024-11-09 01:29:28,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 62 SyntacticMatches, 13 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2024-11-09 01:29:28,167 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 20 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:28,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 136 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 01:29:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-09 01:29:28,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 400. [2024-11-09 01:29:28,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 350 states have (on average 1.3657142857142857) internal successors, (478), 386 states have internal predecessors, (478), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:29:28,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 498 transitions. [2024-11-09 01:29:28,206 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 498 transitions. Word has length 33 [2024-11-09 01:29:28,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:28,206 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 498 transitions. [2024-11-09 01:29:28,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:28,206 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 498 transitions. [2024-11-09 01:29:28,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 01:29:28,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:28,207 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 01:29:28,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 01:29:28,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:28,411 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:29:28,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:28,411 INFO L85 PathProgramCache]: Analyzing trace with hash 107483029, now seen corresponding path program 1 times [2024-11-09 01:29:28,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:28,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057487028] [2024-11-09 01:29:28,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:28,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:29:28,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184988783] [2024-11-09 01:29:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:28,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:28,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:29:28,432 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:29:28,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 01:29:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:28,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:29:28,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:28,745 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:28,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:29:28,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:28,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057487028] [2024-11-09 01:29:28,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:29:28,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184988783] [2024-11-09 01:29:28,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184988783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:28,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:29:28,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:29:28,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272877403] [2024-11-09 01:29:28,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:28,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:29:28,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:28,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:29:28,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:29:28,747 INFO L87 Difference]: Start difference. First operand 400 states and 498 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:29,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:29,268 INFO L93 Difference]: Finished difference Result 406 states and 502 transitions. [2024-11-09 01:29:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:29:29,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-11-09 01:29:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:29,269 INFO L225 Difference]: With dead ends: 406 [2024-11-09 01:29:29,269 INFO L226 Difference]: Without dead ends: 404 [2024-11-09 01:29:29,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:29:29,270 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 34 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:29,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 125 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:29:29,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-09 01:29:29,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 400. [2024-11-09 01:29:29,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 350 states have (on average 1.36) internal successors, (476), 386 states have internal predecessors, (476), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:29:29,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 496 transitions. [2024-11-09 01:29:29,306 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 496 transitions. Word has length 34 [2024-11-09 01:29:29,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:29,307 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 496 transitions. [2024-11-09 01:29:29,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:29,307 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 496 transitions. [2024-11-09 01:29:29,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 01:29:29,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:29,308 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:29,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 01:29:29,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:29,512 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:29:29,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash -962993333, now seen corresponding path program 1 times [2024-11-09 01:29:29,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:29,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634038091] [2024-11-09 01:29:29,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:29,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:29:29,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170719404] [2024-11-09 01:29:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:29,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:29,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:29:29,550 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:29:29,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 01:29:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:29,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 01:29:29,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:30,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:30,135 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:29:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 01:29:30,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:30,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634038091] [2024-11-09 01:29:30,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:29:30,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170719404] [2024-11-09 01:29:30,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170719404] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:29:30,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:29:30,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 01:29:30,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441805145] [2024-11-09 01:29:30,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:30,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:29:30,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:30,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:29:30,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:29:30,335 INFO L87 Difference]: Start difference. First operand 400 states and 496 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:32,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:32,437 INFO L93 Difference]: Finished difference Result 428 states and 539 transitions. [2024-11-09 01:29:32,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:29:32,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-09 01:29:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:32,441 INFO L225 Difference]: With dead ends: 428 [2024-11-09 01:29:32,441 INFO L226 Difference]: Without dead ends: 427 [2024-11-09 01:29:32,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:29:32,442 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 42 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:32,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 87 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 01:29:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-09 01:29:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 420. [2024-11-09 01:29:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 370 states have (on average 1.3675675675675676) internal successors, (506), 406 states have internal predecessors, (506), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:29:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 526 transitions. [2024-11-09 01:29:32,491 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 526 transitions. Word has length 35 [2024-11-09 01:29:32,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:32,492 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 526 transitions. [2024-11-09 01:29:32,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:29:32,492 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 526 transitions. [2024-11-09 01:29:32,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 01:29:32,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:32,493 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:32,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 01:29:32,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-09 01:29:32,698 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:29:32,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:32,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1060113620, now seen corresponding path program 1 times [2024-11-09 01:29:32,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:32,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721938151] [2024-11-09 01:29:32,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:32,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:29:32,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703197286] [2024-11-09 01:29:32,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:32,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:32,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:29:32,725 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:29:32,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 01:29:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:32,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:29:32,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:33,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:33,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:29:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:33,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:33,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721938151] [2024-11-09 01:29:33,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:29:33,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703197286] [2024-11-09 01:29:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703197286] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:29:33,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1356716152] [2024-11-09 01:29:33,435 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-09 01:29:33,435 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:29:33,436 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:29:33,436 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:29:33,436 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:29:34,614 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2024-11-09 01:29:34,631 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:29:49,421 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21981#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_118| Int) (|v_ULTIMATE.start_main_~a~0#1_116| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~a~0#1_116| |v_ULTIMATE.start_main_~b~0#1_118|)) 0) (<= 0 (+ 9223372039002259455 |v_ULTIMATE.start_main_~b~0#1_118|)) (<= |v_ULTIMATE.start_main_~b~0#1_118| 2147483647) (<= |v_ULTIMATE.start_main_~a~0#1_116| 2147483647) (<= 0 (+ 9223372039002259455 |v_ULTIMATE.start_main_~a~0#1_116|)))))' at error location [2024-11-09 01:29:49,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:29:49,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:29:49,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-09 01:29:49,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178558398] [2024-11-09 01:29:49,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:29:49,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 01:29:49,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:49,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 01:29:49,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=811, Unknown=1, NotChecked=0, Total=992 [2024-11-09 01:29:49,428 INFO L87 Difference]: Start difference. First operand 420 states and 526 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:29:56,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:56,799 INFO L93 Difference]: Finished difference Result 525 states and 665 transitions. [2024-11-09 01:29:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 01:29:56,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-11-09 01:29:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:56,801 INFO L225 Difference]: With dead ends: 525 [2024-11-09 01:29:56,801 INFO L226 Difference]: Without dead ends: 514 [2024-11-09 01:29:56,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 71 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=275, Invalid=1284, Unknown=1, NotChecked=0, Total=1560 [2024-11-09 01:29:56,802 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 229 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:56,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 152 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-09 01:29:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-09 01:29:56,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 474. [2024-11-09 01:29:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 422 states have (on average 1.3625592417061612) internal successors, (575), 458 states have internal predecessors, (575), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 01:29:56,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 599 transitions. [2024-11-09 01:29:56,856 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 599 transitions. Word has length 37 [2024-11-09 01:29:56,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:56,856 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 599 transitions. [2024-11-09 01:29:56,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:29:56,856 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 599 transitions. [2024-11-09 01:29:56,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 01:29:56,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:56,857 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:56,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 01:29:57,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:57,062 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:29:57,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:57,063 INFO L85 PathProgramCache]: Analyzing trace with hash -861937874, now seen corresponding path program 1 times [2024-11-09 01:29:57,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:57,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096118851] [2024-11-09 01:29:57,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:57,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:29:57,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224066811] [2024-11-09 01:29:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:57,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:57,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:29:57,083 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:29:57,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 01:29:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:57,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:29:57,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:57,682 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:57,682 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:29:58,459 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:29:58,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:58,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096118851] [2024-11-09 01:29:58,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:29:58,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224066811] [2024-11-09 01:29:58,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224066811] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:29:58,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1840135536] [2024-11-09 01:29:58,462 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-09 01:29:58,462 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:29:58,462 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:29:58,462 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:29:58,462 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:29:59,743 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2024-11-09 01:29:59,768 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:30:14,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1840135536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:30:14,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:30:14,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [5, 5] total 30 [2024-11-09 01:30:14,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327587519] [2024-11-09 01:30:14,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:30:14,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 01:30:14,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:30:14,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 01:30:14,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=764, Unknown=1, NotChecked=0, Total=930 [2024-11-09 01:30:14,782 INFO L87 Difference]: Start difference. First operand 474 states and 599 transitions. Second operand has 23 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:30:21,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:30:23,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:30:42,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:30:48,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:30:49,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:30:49,442 INFO L93 Difference]: Finished difference Result 606 states and 758 transitions. [2024-11-09 01:30:49,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-09 01:30:49,442 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2024-11-09 01:30:49,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:30:49,444 INFO L225 Difference]: With dead ends: 606 [2024-11-09 01:30:49,444 INFO L226 Difference]: Without dead ends: 600 [2024-11-09 01:30:49,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 78 SyntacticMatches, 8 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=464, Invalid=1791, Unknown=1, NotChecked=0, Total=2256 [2024-11-09 01:30:49,446 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 150 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:30:49,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 124 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1647 Invalid, 2 Unknown, 0 Unchecked, 25.2s Time] [2024-11-09 01:30:49,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-09 01:30:49,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 529. [2024-11-09 01:30:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 471 states have (on average 1.3524416135881103) internal successors, (637), 508 states have internal predecessors, (637), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 01:30:49,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 667 transitions. [2024-11-09 01:30:49,519 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 667 transitions. Word has length 39 [2024-11-09 01:30:49,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:30:49,519 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 667 transitions. [2024-11-09 01:30:49,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:30:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 667 transitions. [2024-11-09 01:30:49,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 01:30:49,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:30:49,520 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:30:49,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 01:30:49,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:30:49,725 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:30:49,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:30:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash 606393136, now seen corresponding path program 1 times [2024-11-09 01:30:49,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:30:49,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259109101] [2024-11-09 01:30:49,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:30:49,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:30:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:30:49,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807753824] [2024-11-09 01:30:49,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:30:49,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:30:49,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:30:49,743 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:30:49,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 01:30:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:30:49,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:30:49,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:30:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:30:51,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:30:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:30:52,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:30:52,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259109101] [2024-11-09 01:30:52,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:30:52,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807753824] [2024-11-09 01:30:52,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807753824] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:30:52,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:30:52,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-09 01:30:52,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515486082] [2024-11-09 01:30:52,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:30:52,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:30:52,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:30:52,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:30:52,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 01:30:52,266 INFO L87 Difference]: Start difference. First operand 529 states and 667 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:30:59,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:30:59,099 INFO L93 Difference]: Finished difference Result 563 states and 709 transitions. [2024-11-09 01:30:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:30:59,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2024-11-09 01:30:59,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:30:59,101 INFO L225 Difference]: With dead ends: 563 [2024-11-09 01:30:59,101 INFO L226 Difference]: Without dead ends: 562 [2024-11-09 01:30:59,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-09 01:30:59,102 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 138 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:30:59,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 106 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-09 01:30:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-09 01:30:59,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 547. [2024-11-09 01:30:59,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 489 states have (on average 1.343558282208589) internal successors, (657), 526 states have internal predecessors, (657), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 01:30:59,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 687 transitions. [2024-11-09 01:30:59,182 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 687 transitions. Word has length 41 [2024-11-09 01:30:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:30:59,183 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 687 transitions. [2024-11-09 01:30:59,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:30:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 687 transitions. [2024-11-09 01:30:59,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 01:30:59,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:30:59,184 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:30:59,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 01:30:59,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:30:59,385 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:30:59,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:30:59,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1618318096, now seen corresponding path program 1 times [2024-11-09 01:30:59,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:30:59,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100903056] [2024-11-09 01:30:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:30:59,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:30:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:30:59,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898651707] [2024-11-09 01:30:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:30:59,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:30:59,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:30:59,399 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:30:59,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 01:30:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:30:59,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 01:30:59,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:31:00,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 01:31:00,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:00,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100903056] [2024-11-09 01:31:00,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:31:00,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898651707] [2024-11-09 01:31:00,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898651707] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:00,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:31:00,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 01:31:00,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205833216] [2024-11-09 01:31:00,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:00,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:31:00,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:31:00,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:31:00,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:31:00,399 INFO L87 Difference]: Start difference. First operand 547 states and 687 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:31:03,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:03,852 INFO L93 Difference]: Finished difference Result 556 states and 697 transitions. [2024-11-09 01:31:03,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:31:03,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2024-11-09 01:31:03,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:03,854 INFO L225 Difference]: With dead ends: 556 [2024-11-09 01:31:03,854 INFO L226 Difference]: Without dead ends: 555 [2024-11-09 01:31:03,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-11-09 01:31:03,854 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 68 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:03,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 63 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 01:31:03,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-09 01:31:03,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 547. [2024-11-09 01:31:03,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 489 states have (on average 1.3394683026584866) internal successors, (655), 526 states have internal predecessors, (655), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 01:31:03,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 685 transitions. [2024-11-09 01:31:03,927 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 685 transitions. Word has length 42 [2024-11-09 01:31:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:03,928 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 685 transitions. [2024-11-09 01:31:03,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:31:03,928 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 685 transitions. [2024-11-09 01:31:03,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 01:31:03,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:03,929 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:03,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 01:31:04,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-09 01:31:04,133 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:31:04,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:04,133 INFO L85 PathProgramCache]: Analyzing trace with hash -730162898, now seen corresponding path program 1 times [2024-11-09 01:31:04,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:04,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459674230] [2024-11-09 01:31:04,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:04,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:31:04,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:04,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459674230] [2024-11-09 01:31:04,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459674230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:31:04,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:31:04,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:31:04,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691892677] [2024-11-09 01:31:04,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:04,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:31:04,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:31:04,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:31:04,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:31:04,243 INFO L87 Difference]: Start difference. First operand 547 states and 685 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:31:04,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:04,662 INFO L93 Difference]: Finished difference Result 547 states and 685 transitions. [2024-11-09 01:31:04,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:31:04,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-09 01:31:04,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:04,664 INFO L225 Difference]: With dead ends: 547 [2024-11-09 01:31:04,664 INFO L226 Difference]: Without dead ends: 544 [2024-11-09 01:31:04,665 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 [2024-11-09 01:31:04,665 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 43 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:04,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 39 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:31:04,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-09 01:31:04,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2024-11-09 01:31:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 489 states have (on average 1.3210633946830266) internal successors, (646), 523 states have internal predecessors, (646), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 01:31:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 676 transitions. [2024-11-09 01:31:04,730 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 676 transitions. Word has length 45 [2024-11-09 01:31:04,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:04,730 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 676 transitions. [2024-11-09 01:31:04,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:31:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 676 transitions. [2024-11-09 01:31:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 01:31:04,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:04,731 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:04,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-09 01:31:04,731 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:31:04,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:04,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1173604295, now seen corresponding path program 1 times [2024-11-09 01:31:04,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:04,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304769131] [2024-11-09 01:31:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:04,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:31:04,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146275536] [2024-11-09 01:31:04,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:04,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:31:04,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:31:04,762 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:31:04,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 01:31:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:04,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 01:31:04,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:31:06,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 01:31:08,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:08,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304769131] [2024-11-09 01:31:08,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:31:08,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146275536] [2024-11-09 01:31:08,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146275536] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:08,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:31:08,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 01:31:08,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160140886] [2024-11-09 01:31:08,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:08,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:31:08,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:31:08,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:31:08,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:31:08,279 INFO L87 Difference]: Start difference. First operand 544 states and 676 transitions. Second operand has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:31:11,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:11,466 INFO L93 Difference]: Finished difference Result 618 states and 771 transitions. [2024-11-09 01:31:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:31:11,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2024-11-09 01:31:11,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:11,468 INFO L225 Difference]: With dead ends: 618 [2024-11-09 01:31:11,469 INFO L226 Difference]: Without dead ends: 617 [2024-11-09 01:31:11,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:31:11,469 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 58 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:11,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 118 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 01:31:11,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-09 01:31:11,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 543. [2024-11-09 01:31:11,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 489 states have (on average 1.3149284253578732) internal successors, (643), 522 states have internal predecessors, (643), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 01:31:11,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 673 transitions. [2024-11-09 01:31:11,534 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 673 transitions. Word has length 46 [2024-11-09 01:31:11,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:11,534 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 673 transitions. [2024-11-09 01:31:11,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:31:11,535 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 673 transitions. [2024-11-09 01:31:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 01:31:11,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:11,535 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:11,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-09 01:31:11,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 01:31:11,736 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:31:11,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1160213241, now seen corresponding path program 1 times [2024-11-09 01:31:11,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:11,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863420290] [2024-11-09 01:31:11,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:11,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:31:11,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164454432] [2024-11-09 01:31:11,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:11,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:31:11,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:31:11,759 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:31:11,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 01:31:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:11,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 01:31:11,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:31:17,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 01:31:18,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:18,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863420290] [2024-11-09 01:31:18,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:31:18,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164454432] [2024-11-09 01:31:18,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164454432] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:18,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:31:18,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 01:31:18,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145156833] [2024-11-09 01:31:18,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:18,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:31:18,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:31:18,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:31:18,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:31:18,108 INFO L87 Difference]: Start difference. First operand 543 states and 673 transitions. Second operand has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:31:20,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:20,105 INFO L93 Difference]: Finished difference Result 591 states and 744 transitions. [2024-11-09 01:31:20,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:31:20,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2024-11-09 01:31:20,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:20,108 INFO L225 Difference]: With dead ends: 591 [2024-11-09 01:31:20,108 INFO L226 Difference]: Without dead ends: 590 [2024-11-09 01:31:20,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:31:20,110 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 68 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:20,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 110 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 01:31:20,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-09 01:31:20,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 542. [2024-11-09 01:31:20,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 489 states have (on average 1.3108384458077709) internal successors, (641), 521 states have internal predecessors, (641), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 01:31:20,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 671 transitions. [2024-11-09 01:31:20,164 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 671 transitions. Word has length 46 [2024-11-09 01:31:20,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:20,164 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 671 transitions. [2024-11-09 01:31:20,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:31:20,165 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 671 transitions. [2024-11-09 01:31:20,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 01:31:20,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:20,166 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:20,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-09 01:31:20,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 01:31:20,369 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:31:20,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:20,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1606871984, now seen corresponding path program 1 times [2024-11-09 01:31:20,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:20,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504207015] [2024-11-09 01:31:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:20,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:31:20,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585812277] [2024-11-09 01:31:20,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:20,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:31:20,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:31:20,391 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:31:20,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 01:31:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:20,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 01:31:20,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:31:26,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 01:31:28,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:28,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504207015] [2024-11-09 01:31:28,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:31:28,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585812277] [2024-11-09 01:31:28,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585812277] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:28,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:31:28,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 01:31:28,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155731144] [2024-11-09 01:31:28,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:28,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:31:28,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:31:28,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:31:28,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:31:28,275 INFO L87 Difference]: Start difference. First operand 542 states and 671 transitions. Second operand has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:31:31,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:31,509 INFO L93 Difference]: Finished difference Result 590 states and 742 transitions. [2024-11-09 01:31:31,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:31:31,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2024-11-09 01:31:31,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:31,512 INFO L225 Difference]: With dead ends: 590 [2024-11-09 01:31:31,512 INFO L226 Difference]: Without dead ends: 589 [2024-11-09 01:31:31,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:31:31,513 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 65 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:31,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 110 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 01:31:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-09 01:31:31,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 541. [2024-11-09 01:31:31,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 489 states have (on average 1.3067484662576687) internal successors, (639), 520 states have internal predecessors, (639), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 01:31:31,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 669 transitions. [2024-11-09 01:31:31,588 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 669 transitions. Word has length 47 [2024-11-09 01:31:31,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:31,588 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 669 transitions. [2024-11-09 01:31:31,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:31:31,588 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 669 transitions. [2024-11-09 01:31:31,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 01:31:31,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:31,589 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 01:31:31,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 01:31:31,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 01:31:31,790 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:31:31,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:31,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2005896159, now seen corresponding path program 1 times [2024-11-09 01:31:31,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:31,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352380579] [2024-11-09 01:31:31,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:31,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:31:31,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:31,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352380579] [2024-11-09 01:31:31,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352380579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:31,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334458616] [2024-11-09 01:31:31,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:31,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:31:31,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:31:31,881 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:31:31,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 01:31:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:31,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:31:31,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:32,095 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:31:32,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:31:32,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334458616] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:31:32,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1891523898] [2024-11-09 01:31:32,272 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 01:31:32,272 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:31:32,272 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:31:32,273 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:31:32,273 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:31:36,011 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 01:31:36,103 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:32:14,450 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '33603#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~a~0#1_149| Int)) (and (<= 0 (+ 9223372036854775808 (div |v_ULTIMATE.start_main_~a~0#1_149| 2))) (= (mod |v_ULTIMATE.start_main_~a~0#1_149| 2) 0) (<= (div |v_ULTIMATE.start_main_~a~0#1_149| 2) 9223372036854775807) (= |ULTIMATE.start_main_~a~0#1| (div |v_ULTIMATE.start_main_~a~0#1_149| 2)))) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_152| Int)) (and (<= (div |v_ULTIMATE.start_main_~b~0#1_152| 2) 9223372036854775807) (= |ULTIMATE.start_main_~b~0#1| (div |v_ULTIMATE.start_main_~b~0#1_152| 2)) (<= 0 (+ 9223372036854775808 (div |v_ULTIMATE.start_main_~b~0#1_152| 2))) (= (mod |v_ULTIMATE.start_main_~b~0#1_152| 2) 0))))' at error location [2024-11-09 01:32:14,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:32:14,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:32:14,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-09 01:32:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805198021] [2024-11-09 01:32:14,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:32:14,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:32:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:32:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:32:14,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=489, Unknown=7, NotChecked=0, Total=600 [2024-11-09 01:32:14,453 INFO L87 Difference]: Start difference. First operand 541 states and 669 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 01:32:15,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:15,070 INFO L93 Difference]: Finished difference Result 1233 states and 1582 transitions. [2024-11-09 01:32:15,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:32:15,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 47 [2024-11-09 01:32:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:15,076 INFO L225 Difference]: With dead ends: 1233 [2024-11-09 01:32:15,076 INFO L226 Difference]: Without dead ends: 1232 [2024-11-09 01:32:15,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 109 SyntacticMatches, 10 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 38.4s TimeCoverageRelationStatistics Valid=104, Invalid=489, Unknown=7, NotChecked=0, Total=600 [2024-11-09 01:32:15,077 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 272 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:15,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 269 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:32:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-11-09 01:32:15,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1147. [2024-11-09 01:32:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1083 states have (on average 1.3628808864265929) internal successors, (1476), 1114 states have internal predecessors, (1476), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 01:32:15,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1530 transitions. [2024-11-09 01:32:15,174 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1530 transitions. Word has length 47 [2024-11-09 01:32:15,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:15,175 INFO L471 AbstractCegarLoop]: Abstraction has 1147 states and 1530 transitions. [2024-11-09 01:32:15,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 01:32:15,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1530 transitions. [2024-11-09 01:32:15,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 01:32:15,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:15,175 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:15,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-09 01:32:15,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:15,376 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:32:15,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:15,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2140744553, now seen corresponding path program 1 times [2024-11-09 01:32:15,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:32:15,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675317408] [2024-11-09 01:32:15,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:15,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:15,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:32:15,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675317408] [2024-11-09 01:32:15,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675317408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:32:15,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258355979] [2024-11-09 01:32:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:15,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:15,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:32:15,758 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:32:15,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 01:32:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:15,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:32:15,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:32:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 01:32:16,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:32:16,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258355979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:16,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:32:16,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 01:32:16,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158683773] [2024-11-09 01:32:16,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:16,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:32:16,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:32:16,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:32:16,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-09 01:32:16,107 INFO L87 Difference]: Start difference. First operand 1147 states and 1530 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:32:17,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:17,019 INFO L93 Difference]: Finished difference Result 1880 states and 2595 transitions. [2024-11-09 01:32:17,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 01:32:17,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2024-11-09 01:32:17,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:17,025 INFO L225 Difference]: With dead ends: 1880 [2024-11-09 01:32:17,025 INFO L226 Difference]: Without dead ends: 1418 [2024-11-09 01:32:17,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:32:17,027 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 165 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:17,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 62 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:32:17,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-11-09 01:32:17,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1229. [2024-11-09 01:32:17,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1161 states have (on average 1.3169681309216192) internal successors, (1529), 1186 states have internal predecessors, (1529), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-09 01:32:17,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1603 transitions. [2024-11-09 01:32:17,160 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1603 transitions. Word has length 48 [2024-11-09 01:32:17,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:17,160 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1603 transitions. [2024-11-09 01:32:17,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:32:17,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1603 transitions. [2024-11-09 01:32:17,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 01:32:17,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:17,161 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 01:32:17,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 01:32:17,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:17,362 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:32:17,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:17,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1040490043, now seen corresponding path program 1 times [2024-11-09 01:32:17,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:32:17,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587518369] [2024-11-09 01:32:17,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:17,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:17,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:32:17,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587518369] [2024-11-09 01:32:17,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587518369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:17,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:32:17,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:32:17,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394357810] [2024-11-09 01:32:17,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:17,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:32:17,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:32:17,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:32:17,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:32:17,705 INFO L87 Difference]: Start difference. First operand 1229 states and 1603 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:32:18,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:18,180 INFO L93 Difference]: Finished difference Result 2177 states and 2897 transitions. [2024-11-09 01:32:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:32:18,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2024-11-09 01:32:18,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:18,184 INFO L225 Difference]: With dead ends: 2177 [2024-11-09 01:32:18,184 INFO L226 Difference]: Without dead ends: 1281 [2024-11-09 01:32:18,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:32:18,186 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 17 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:18,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 130 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 01:32:18,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2024-11-09 01:32:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1253. [2024-11-09 01:32:18,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1180 states have (on average 1.3042372881355933) internal successors, (1539), 1205 states have internal predecessors, (1539), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 01:32:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1623 transitions. [2024-11-09 01:32:18,306 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1623 transitions. Word has length 49 [2024-11-09 01:32:18,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:18,307 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1623 transitions. [2024-11-09 01:32:18,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:32:18,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1623 transitions. [2024-11-09 01:32:18,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 01:32:18,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:18,308 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:18,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-09 01:32:18,308 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:32:18,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:18,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1938571840, now seen corresponding path program 1 times [2024-11-09 01:32:18,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:32:18,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286796172] [2024-11-09 01:32:18,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:18,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:18,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:32:18,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286796172] [2024-11-09 01:32:18,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286796172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:32:18,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023553061] [2024-11-09 01:32:18,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:18,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:18,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:32:18,793 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:32:18,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 01:32:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:18,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:32:18,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:32:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:19,414 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:32:20,597 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:20,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023553061] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:32:20,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:32:20,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 20 [2024-11-09 01:32:20,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106712362] [2024-11-09 01:32:20,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:20,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:32:20,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:32:20,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:32:20,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-09 01:32:20,600 INFO L87 Difference]: Start difference. First operand 1253 states and 1623 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:32:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:21,853 INFO L93 Difference]: Finished difference Result 1478 states and 1950 transitions. [2024-11-09 01:32:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:32:21,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2024-11-09 01:32:21,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:21,862 INFO L225 Difference]: With dead ends: 1478 [2024-11-09 01:32:21,862 INFO L226 Difference]: Without dead ends: 1477 [2024-11-09 01:32:21,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2024-11-09 01:32:21,869 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 240 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:21,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 50 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:32:21,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2024-11-09 01:32:22,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1252. [2024-11-09 01:32:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1180 states have (on average 1.290677966101695) internal successors, (1523), 1204 states have internal predecessors, (1523), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 01:32:22,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1607 transitions. [2024-11-09 01:32:22,021 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1607 transitions. Word has length 49 [2024-11-09 01:32:22,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:22,021 INFO L471 AbstractCegarLoop]: Abstraction has 1252 states and 1607 transitions. [2024-11-09 01:32:22,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:32:22,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1607 transitions. [2024-11-09 01:32:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 01:32:22,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:22,022 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:22,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 01:32:22,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:22,222 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:32:22,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:22,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1048263774, now seen corresponding path program 1 times [2024-11-09 01:32:22,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:32:22,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367598263] [2024-11-09 01:32:22,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:22,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:22,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:32:22,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367598263] [2024-11-09 01:32:22,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367598263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:32:22,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007679046] [2024-11-09 01:32:22,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:22,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:22,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:32:22,794 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:32:22,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 01:32:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:22,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:32:22,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:32:23,531 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:23,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:32:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:24,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007679046] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:32:24,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:32:24,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 20 [2024-11-09 01:32:24,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135373630] [2024-11-09 01:32:24,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:24,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:32:24,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:32:24,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:32:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-09 01:32:24,690 INFO L87 Difference]: Start difference. First operand 1252 states and 1607 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:32:25,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:25,627 INFO L93 Difference]: Finished difference Result 1300 states and 1667 transitions. [2024-11-09 01:32:25,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:32:25,627 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-11-09 01:32:25,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:25,631 INFO L225 Difference]: With dead ends: 1300 [2024-11-09 01:32:25,631 INFO L226 Difference]: Without dead ends: 1299 [2024-11-09 01:32:25,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2024-11-09 01:32:25,632 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 204 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:25,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 39 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:32:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2024-11-09 01:32:25,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1251. [2024-11-09 01:32:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 1180 states have (on average 1.2771186440677966) internal successors, (1507), 1203 states have internal predecessors, (1507), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 01:32:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1591 transitions. [2024-11-09 01:32:25,735 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1591 transitions. Word has length 51 [2024-11-09 01:32:25,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:25,735 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1591 transitions. [2024-11-09 01:32:25,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:32:25,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1591 transitions. [2024-11-09 01:32:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 01:32:25,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:25,736 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:25,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-09 01:32:25,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:25,937 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:32:25,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:25,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1863561517, now seen corresponding path program 1 times [2024-11-09 01:32:25,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:32:25,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879791627] [2024-11-09 01:32:25,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:25,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:32:25,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721154058] [2024-11-09 01:32:25,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:25,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:25,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:32:25,977 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:32:25,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 01:32:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:26,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 01:32:26,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:32:26,988 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:26,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:32:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:32:39,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:32:39,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879791627] [2024-11-09 01:32:39,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:32:39,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721154058] [2024-11-09 01:32:39,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721154058] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:32:39,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [625171915] [2024-11-09 01:32:39,397 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-09 01:32:39,397 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:32:39,397 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:32:39,397 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:32:39,398 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:32:41,241 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2024-11-09 01:32:41,296 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:32:53,507 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_166| Int)) (let ((.cse4 (+ |v_ULTIMATE.start_main_~a~0#1_166| 1)) (.cse5 (= (mod |v_ULTIMATE.start_main_~a~0#1_166| 2) 0))) (let ((.cse0 (not .cse5)) (.cse1 (<= .cse4 0)) (.cse3 (or (< 0 .cse4) .cse5)) (.cse2 (div |v_ULTIMATE.start_main_~a~0#1_166| 2))) (and (or (and .cse0 .cse1 (<= .cse2 9223372036854775806)) (and .cse3 (<= .cse2 9223372036854775807))) (or (and .cse0 .cse1 (<= 0 (+ 9223372036854775809 .cse2))) (and .cse3 (<= 0 (+ 9223372036854775808 .cse2)))) (or (and (= |c_ULTIMATE.start_main_~a~0#1| (+ .cse2 1)) .cse0 .cse1) (and .cse3 (= |c_ULTIMATE.start_main_~a~0#1| .cse2))))))) is different from true [2024-11-09 01:33:40,921 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '50075#(exists ((|v_ULTIMATE.start_main_~b~0#1_172| Int) (|v_ULTIMATE.start_main_~a~0#1_168| Int) (|v_ULTIMATE.start_main_~p~0#1_104| Int)) (and (<= (+ (* |v_ULTIMATE.start_main_~a~0#1_168| |v_ULTIMATE.start_main_~p~0#1_104|) 9223372036854775809 (* |v_ULTIMATE.start_main_~b~0#1_172| |v_ULTIMATE.start_main_~p~0#1_104|) |v_ULTIMATE.start_main_~p~0#1_104|) 0) (<= 0 (+ ~counter~0 2147483648)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_172|)) (<= |v_ULTIMATE.start_main_~b~0#1_172| 9223372036854775807) (<= |v_ULTIMATE.start_main_~a~0#1_168| 9223372036854775807) (<= (+ |v_ULTIMATE.start_main_~a~0#1_168| |v_ULTIMATE.start_main_~b~0#1_172|) 9223372036854775806) (<= ~counter~0 2147483647) (or (< (+ |v_ULTIMATE.start_main_~b~0#1_172| 1) 0) (not (= (mod (+ |v_ULTIMATE.start_main_~b~0#1_172| 1) 2) 1)) (not (= (mod (+ |v_ULTIMATE.start_main_~a~0#1_168| 1) 2) 0))) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_168| 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_172|)) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_168| 9223372036854775808))))' at error location [2024-11-09 01:33:40,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:33:40,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:33:40,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-09 01:33:40,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001543415] [2024-11-09 01:33:40,922 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:33:40,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 01:33:40,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:33:40,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 01:33:40,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1928, Unknown=22, NotChecked=92, Total=2352 [2024-11-09 01:33:40,927 INFO L87 Difference]: Start difference. First operand 1251 states and 1591 transitions. Second operand has 18 states, 17 states have (on average 5.470588235294118) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:34:10,171 WARN L286 SmtUtils]: Spent 28.82s on a formula simplification. DAG size of input: 62 DAG size of output: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:19,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:34:21,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:34:23,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:34:25,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 01:34:41,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:34:41,597 INFO L93 Difference]: Finished difference Result 1840 states and 2391 transitions. [2024-11-09 01:34:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 01:34:41,598 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.470588235294118) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2024-11-09 01:34:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:34:41,604 INFO L225 Difference]: With dead ends: 1840 [2024-11-09 01:34:41,604 INFO L226 Difference]: Without dead ends: 1837 [2024-11-09 01:34:41,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 1150 ImplicationChecksByTransitivity, 107.4s TimeCoverageRelationStatistics Valid=444, Invalid=2616, Unknown=24, NotChecked=108, Total=3192 [2024-11-09 01:34:41,606 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 448 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 77 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:34:41,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 338 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1456 Invalid, 4 Unknown, 0 Unchecked, 22.7s Time] [2024-11-09 01:34:41,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2024-11-09 01:34:41,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1393. [2024-11-09 01:34:41,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1316 states have (on average 1.2727963525835866) internal successors, (1675), 1339 states have internal predecessors, (1675), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 01:34:41,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1771 transitions. [2024-11-09 01:34:41,780 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1771 transitions. Word has length 52 [2024-11-09 01:34:41,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:34:41,781 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1771 transitions. [2024-11-09 01:34:41,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.470588235294118) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:34:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1771 transitions. [2024-11-09 01:34:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 01:34:41,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:34:41,782 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:34:41,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-09 01:34:41,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:34:41,984 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:34:41,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:34:41,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1935832324, now seen corresponding path program 1 times [2024-11-09 01:34:41,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:34:41,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340670366] [2024-11-09 01:34:41,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:34:41,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:34:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:34:42,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183110719] [2024-11-09 01:34:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:34:42,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:34:42,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:34:42,023 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:34:42,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 01:34:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:34:42,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 01:34:42,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:34:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:34:43,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:34:47,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:34:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340670366] [2024-11-09 01:34:47,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:34:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183110719] [2024-11-09 01:34:47,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183110719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:34:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [923520777] [2024-11-09 01:34:47,241 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-09 01:34:47,241 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:34:47,242 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:34:47,242 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:34:47,242 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:34:49,160 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2024-11-09 01:34:49,209 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:34:59,353 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_176| Int)) (let ((.cse5 (= (mod |v_ULTIMATE.start_main_~a~0#1_176| 2) 0)) (.cse4 (+ |v_ULTIMATE.start_main_~a~0#1_176| 1))) (let ((.cse1 (or .cse5 (< 0 .cse4))) (.cse2 (not .cse5)) (.cse0 (div |v_ULTIMATE.start_main_~a~0#1_176| 2)) (.cse3 (<= .cse4 0))) (and (or (and (<= .cse0 9223372036854775807) .cse1) (and .cse2 (<= .cse0 9223372036854775806) .cse3)) (or (and .cse2 (= |c_ULTIMATE.start_main_~a~0#1| (+ .cse0 1)) .cse3) (and (= |c_ULTIMATE.start_main_~a~0#1| .cse0) .cse1)) (or (and (<= 0 (+ .cse0 9223372036854775808)) .cse1) (and .cse2 (<= 0 (+ 9223372036854775809 .cse0)) .cse3)))))) is different from true [2024-11-09 01:35:55,219 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53899#(exists ((|v_ULTIMATE.start_main_~a~0#1_178| Int) (|v_ULTIMATE.start_main_~b~0#1_182| Int) (|v_ULTIMATE.start_main_~p~0#1_111| Int)) (and (<= 0 (+ ~counter~0 2147483648)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_182|)) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_178| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~a~0#1_178| 9223372036854775807) (<= |v_ULTIMATE.start_main_~b~0#1_182| 9223372036854775807) (or (not (= (mod (+ |v_ULTIMATE.start_main_~a~0#1_178| 1) 2) 0)) (< (+ |v_ULTIMATE.start_main_~b~0#1_182| 1) 0) (not (= (mod (+ |v_ULTIMATE.start_main_~b~0#1_182| 1) 2) 1))) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_178| 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_182|)) (<= (+ |v_ULTIMATE.start_main_~a~0#1_178| |v_ULTIMATE.start_main_~b~0#1_182|) 9223372036854775806) (<= ~counter~0 2147483647) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~b~0#1_182| |v_ULTIMATE.start_main_~p~0#1_111|) |v_ULTIMATE.start_main_~p~0#1_111| (* |v_ULTIMATE.start_main_~a~0#1_178| |v_ULTIMATE.start_main_~p~0#1_111|)))))' at error location [2024-11-09 01:35:55,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:35:55,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:35:55,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 01:35:55,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755963923] [2024-11-09 01:35:55,220 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:35:55,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 01:35:55,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:35:55,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 01:35:55,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=1858, Unknown=20, NotChecked=90, Total=2256 [2024-11-09 01:35:55,222 INFO L87 Difference]: Start difference. First operand 1393 states and 1771 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:35:57,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:35:57,094 INFO L93 Difference]: Finished difference Result 1508 states and 1920 transitions. [2024-11-09 01:35:57,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:35:57,095 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2024-11-09 01:35:57,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:35:57,098 INFO L225 Difference]: With dead ends: 1508 [2024-11-09 01:35:57,098 INFO L226 Difference]: Without dead ends: 1497 [2024-11-09 01:35:57,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 68.4s TimeCoverageRelationStatistics Valid=302, Invalid=1938, Unknown=20, NotChecked=92, Total=2352 [2024-11-09 01:35:57,100 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 92 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:35:57,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 264 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 01:35:57,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-11-09 01:35:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1462. [2024-11-09 01:35:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1382 states have (on average 1.2655571635311142) internal successors, (1749), 1405 states have internal predecessors, (1749), 51 states have call successors, (51), 6 states have call predecessors, (51), 6 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-09 01:35:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1851 transitions. [2024-11-09 01:35:57,244 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1851 transitions. Word has length 53 [2024-11-09 01:35:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:35:57,244 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 1851 transitions. [2024-11-09 01:35:57,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:35:57,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1851 transitions. [2024-11-09 01:35:57,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 01:35:57,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:35:57,245 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:35:57,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 01:35:57,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:35:57,446 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:35:57,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:35:57,446 INFO L85 PathProgramCache]: Analyzing trace with hash -382582961, now seen corresponding path program 1 times [2024-11-09 01:35:57,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:35:57,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953187040] [2024-11-09 01:35:57,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:35:57,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:35:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:35:58,316 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:35:58,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:35:58,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953187040] [2024-11-09 01:35:58,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953187040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:35:58,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:35:58,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:35:58,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779007484] [2024-11-09 01:35:58,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:35:58,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:35:58,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:35:58,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:35:58,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:35:58,318 INFO L87 Difference]: Start difference. First operand 1462 states and 1851 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:35:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:35:59,391 INFO L93 Difference]: Finished difference Result 2126 states and 2751 transitions. [2024-11-09 01:35:59,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:35:59,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2024-11-09 01:35:59,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:35:59,398 INFO L225 Difference]: With dead ends: 2126 [2024-11-09 01:35:59,398 INFO L226 Difference]: Without dead ends: 1423 [2024-11-09 01:35:59,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:35:59,400 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 41 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:35:59,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 103 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 01:35:59,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2024-11-09 01:35:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1357. [2024-11-09 01:35:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1278 states have (on average 1.2582159624413145) internal successors, (1608), 1301 states have internal predecessors, (1608), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 01:35:59,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1708 transitions. [2024-11-09 01:35:59,594 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1708 transitions. Word has length 55 [2024-11-09 01:35:59,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:35:59,594 INFO L471 AbstractCegarLoop]: Abstraction has 1357 states and 1708 transitions. [2024-11-09 01:35:59,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:35:59,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1708 transitions. [2024-11-09 01:35:59,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 01:35:59,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:35:59,596 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:35:59,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-09 01:35:59,596 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:35:59,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:35:59,597 INFO L85 PathProgramCache]: Analyzing trace with hash -813908886, now seen corresponding path program 1 times [2024-11-09 01:35:59,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:35:59,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270391804] [2024-11-09 01:35:59,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:35:59,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:35:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:36:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:36:00,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:36:00,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270391804] [2024-11-09 01:36:00,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270391804] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:36:00,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942635598] [2024-11-09 01:36:00,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:36:00,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:36:00,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:36:00,545 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:36:00,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 01:36:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:36:00,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 01:36:00,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:36:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:36:01,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:36:03,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942635598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:36:03,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [387621622] [2024-11-09 01:36:03,279 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 01:36:03,279 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:36:03,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:36:03,280 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:36:03,280 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:36:04,793 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2024-11-09 01:36:04,813 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:36:16,428 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '61219#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_188| Int)) (and (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_188|)) (= (mod |v_ULTIMATE.start_main_~b~0#1_188| 2) 0) (<= (+ |v_ULTIMATE.start_main_~b~0#1_188| 1) 0))) (<= |ULTIMATE.start_main_~a~0#1| 2147483646) (= (mod (+ |ULTIMATE.start_main_~a~0#1| 1) 2) 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 1)))' at error location [2024-11-09 01:36:16,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:36:16,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:36:16,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-11-09 01:36:16,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047100610] [2024-11-09 01:36:16,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:36:16,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:36:16,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:36:16,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:36:16,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1515, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 01:36:16,430 INFO L87 Difference]: Start difference. First operand 1357 states and 1708 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:36:18,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:36:18,982 INFO L93 Difference]: Finished difference Result 1806 states and 2311 transitions. [2024-11-09 01:36:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 01:36:18,982 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2024-11-09 01:36:18,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:36:18,987 INFO L225 Difference]: With dead ends: 1806 [2024-11-09 01:36:18,987 INFO L226 Difference]: Without dead ends: 1359 [2024-11-09 01:36:18,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 109 SyntacticMatches, 10 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=337, Invalid=2315, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 01:36:18,989 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 89 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:36:18,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 246 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 01:36:18,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2024-11-09 01:36:19,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1346. [2024-11-09 01:36:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1267 states have (on average 1.2573007103393843) internal successors, (1593), 1290 states have internal predecessors, (1593), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 01:36:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1693 transitions. [2024-11-09 01:36:19,202 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1693 transitions. Word has length 55 [2024-11-09 01:36:19,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:36:19,202 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 1693 transitions. [2024-11-09 01:36:19,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:36:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1693 transitions. [2024-11-09 01:36:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 01:36:19,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:36:19,203 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:36:19,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-09 01:36:19,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-09 01:36:19,409 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:36:19,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:36:19,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1178897866, now seen corresponding path program 1 times [2024-11-09 01:36:19,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:36:19,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571808150] [2024-11-09 01:36:19,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:36:19,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:36:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:36:19,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165647941] [2024-11-09 01:36:19,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:36:19,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:36:19,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:36:19,441 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:36:19,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 01:36:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:36:19,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 01:36:19,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:36:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:36:20,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:36:20,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:36:20,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571808150] [2024-11-09 01:36:20,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:36:20,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165647941] [2024-11-09 01:36:20,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165647941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:36:20,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:36:20,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 01:36:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564309497] [2024-11-09 01:36:20,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:36:20,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:36:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:36:20,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:36:20,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:36:20,233 INFO L87 Difference]: Start difference. First operand 1346 states and 1693 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:36:21,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:36:21,902 INFO L93 Difference]: Finished difference Result 1448 states and 1813 transitions. [2024-11-09 01:36:21,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 01:36:21,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2024-11-09 01:36:21,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:36:21,906 INFO L225 Difference]: With dead ends: 1448 [2024-11-09 01:36:21,906 INFO L226 Difference]: Without dead ends: 1447 [2024-11-09 01:36:21,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2024-11-09 01:36:21,907 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 72 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:36:21,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 242 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 01:36:21,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-09 01:36:22,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1346. [2024-11-09 01:36:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1267 states have (on average 1.2541436464088398) internal successors, (1589), 1290 states have internal predecessors, (1589), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 01:36:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1689 transitions. [2024-11-09 01:36:22,082 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1689 transitions. Word has length 55 [2024-11-09 01:36:22,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:36:22,083 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 1689 transitions. [2024-11-09 01:36:22,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:36:22,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1689 transitions. [2024-11-09 01:36:22,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 01:36:22,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:36:22,084 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:36:22,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 01:36:22,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-09 01:36:22,285 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:36:22,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:36:22,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1696850016, now seen corresponding path program 1 times [2024-11-09 01:36:22,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:36:22,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191756226] [2024-11-09 01:36:22,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:36:22,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:36:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:36:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:36:23,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:36:23,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191756226] [2024-11-09 01:36:23,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191756226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:36:23,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16976438] [2024-11-09 01:36:23,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:36:23,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:36:23,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:36:23,060 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:36:23,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 01:36:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:36:23,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:36:23,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:36:24,317 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:36:24,317 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:36:26,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16976438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:36:26,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1270040726] [2024-11-09 01:36:26,811 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 01:36:26,812 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:36:26,812 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:36:26,812 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:36:26,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:36:29,433 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2024-11-09 01:36:29,486 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:36:42,847 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '68113#(exists ((|v_ULTIMATE.start_main_~a~0#1_190| Int) (|v_ULTIMATE.start_main_~p~0#1_114| Int) (|v_ULTIMATE.start_main_~b~0#1_197| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~a~0#1_190| 2147483646) (<= 0 (+ 2147483649 |v_ULTIMATE.start_main_~a~0#1_190|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_190| 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_197|)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_197|)) (<= |v_ULTIMATE.start_main_~b~0#1_197| 2147483646) (= |v_ULTIMATE.start_main_~p~0#1_114| 1) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-09 01:36:42,848 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:36:42,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 01:36:42,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-09 01:36:42,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251398654] [2024-11-09 01:36:42,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 01:36:42,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 01:36:42,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:36:42,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 01:36:42,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=736, Unknown=1, NotChecked=0, Total=930 [2024-11-09 01:36:42,849 INFO L87 Difference]: Start difference. First operand 1346 states and 1689 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:36:45,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:36:45,371 INFO L93 Difference]: Finished difference Result 1917 states and 2457 transitions. [2024-11-09 01:36:45,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 01:36:45,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2024-11-09 01:36:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:36:45,375 INFO L225 Difference]: With dead ends: 1917 [2024-11-09 01:36:45,375 INFO L226 Difference]: Without dead ends: 1312 [2024-11-09 01:36:45,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 81 SyntacticMatches, 27 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=284, Invalid=1121, Unknown=1, NotChecked=0, Total=1406 [2024-11-09 01:36:45,377 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 53 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:36:45,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 187 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 01:36:45,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2024-11-09 01:36:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1280. [2024-11-09 01:36:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1204 states have (on average 1.2475083056478404) internal successors, (1502), 1226 states have internal predecessors, (1502), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 01:36:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1596 transitions. [2024-11-09 01:36:45,511 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1596 transitions. Word has length 56 [2024-11-09 01:36:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:36:45,511 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1596 transitions. [2024-11-09 01:36:45,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 01:36:45,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1596 transitions. [2024-11-09 01:36:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 01:36:45,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:36:45,513 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:36:45,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-09 01:36:45,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:36:45,717 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:36:45,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:36:45,718 INFO L85 PathProgramCache]: Analyzing trace with hash 522529902, now seen corresponding path program 1 times [2024-11-09 01:36:45,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:36:45,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451299045] [2024-11-09 01:36:45,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:36:45,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:36:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:36:45,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2032794979] [2024-11-09 01:36:45,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:36:45,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:36:45,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:36:45,743 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:36:45,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 01:36:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:36:45,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:36:45,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:36:46,920 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:36:46,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:36:49,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:36:49,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451299045] [2024-11-09 01:36:49,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:36:49,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032794979] [2024-11-09 01:36:49,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032794979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:36:49,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1702396619] [2024-11-09 01:36:49,973 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 01:36:49,973 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:36:49,974 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:36:49,974 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:36:49,974 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:36:51,082 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2024-11-09 01:36:51,095 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:37:03,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1702396619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:37:03,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:37:03,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 29 [2024-11-09 01:37:03,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717957975] [2024-11-09 01:37:03,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:37:03,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 01:37:03,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:37:03,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 01:37:03,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1013, Unknown=1, NotChecked=0, Total=1190 [2024-11-09 01:37:03,375 INFO L87 Difference]: Start difference. First operand 1280 states and 1596 transitions. Second operand has 25 states, 23 states have (on average 1.565217391304348) internal successors, (36), 22 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:37:19,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:37:19,800 INFO L93 Difference]: Finished difference Result 1295 states and 1604 transitions. [2024-11-09 01:37:19,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-09 01:37:19,801 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 1.565217391304348) internal successors, (36), 22 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2024-11-09 01:37:19,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:37:19,803 INFO L225 Difference]: With dead ends: 1295 [2024-11-09 01:37:19,803 INFO L226 Difference]: Without dead ends: 1289 [2024-11-09 01:37:19,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 106 SyntacticMatches, 13 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=477, Invalid=2384, Unknown=1, NotChecked=0, Total=2862 [2024-11-09 01:37:19,805 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 213 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:37:19,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 74 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-09 01:37:19,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-09 01:37:19,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1282. [2024-11-09 01:37:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1205 states have (on average 1.2423236514522822) internal successors, (1497), 1227 states have internal predecessors, (1497), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 01:37:20,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1591 transitions. [2024-11-09 01:37:20,001 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1591 transitions. Word has length 56 [2024-11-09 01:37:20,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:37:20,002 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1591 transitions. [2024-11-09 01:37:20,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 1.565217391304348) internal successors, (36), 22 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 01:37:20,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1591 transitions. [2024-11-09 01:37:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 01:37:20,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:37:20,003 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:37:20,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-09 01:37:20,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-09 01:37:20,204 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:37:20,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:37:20,204 INFO L85 PathProgramCache]: Analyzing trace with hash -748774945, now seen corresponding path program 1 times [2024-11-09 01:37:20,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:37:20,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193692313] [2024-11-09 01:37:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:37:20,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:37:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:37:20,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432735889] [2024-11-09 01:37:20,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:37:20,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:37:20,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:37:20,229 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:37:20,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 01:37:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:37:20,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 01:37:20,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:37:25,739 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:37:25,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:37:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 01:37:29,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:37:29,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193692313] [2024-11-09 01:37:29,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:37:29,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432735889] [2024-11-09 01:37:29,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432735889] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 01:37:29,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:37:29,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-11-09 01:37:29,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978560136] [2024-11-09 01:37:29,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:37:29,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:37:29,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:37:29,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:37:29,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=214, Unknown=1, NotChecked=0, Total=272 [2024-11-09 01:37:29,788 INFO L87 Difference]: Start difference. First operand 1282 states and 1591 transitions. Second operand has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:37:33,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:37:33,483 INFO L93 Difference]: Finished difference Result 1283 states and 1591 transitions. [2024-11-09 01:37:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:37:33,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2024-11-09 01:37:33,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:37:33,486 INFO L225 Difference]: With dead ends: 1283 [2024-11-09 01:37:33,486 INFO L226 Difference]: Without dead ends: 1282 [2024-11-09 01:37:33,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=64, Invalid=241, Unknown=1, NotChecked=0, Total=306 [2024-11-09 01:37:33,487 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 99 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:37:33,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 81 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-09 01:37:33,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2024-11-09 01:37:33,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1282. [2024-11-09 01:37:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1205 states have (on average 1.237344398340249) internal successors, (1491), 1227 states have internal predecessors, (1491), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 01:37:33,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1585 transitions. [2024-11-09 01:37:33,683 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1585 transitions. Word has length 56 [2024-11-09 01:37:33,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:37:33,683 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1585 transitions. [2024-11-09 01:37:33,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:37:33,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1585 transitions. [2024-11-09 01:37:33,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 01:37:33,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:37:33,685 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:37:33,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-09 01:37:33,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:37:33,885 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:37:33,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:37:33,886 INFO L85 PathProgramCache]: Analyzing trace with hash -310404846, now seen corresponding path program 1 times [2024-11-09 01:37:33,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:37:33,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374673987] [2024-11-09 01:37:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:37:33,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:37:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:37:33,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [66924598] [2024-11-09 01:37:33,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:37:33,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:37:33,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:37:33,916 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:37:33,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-09 01:37:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:37:33,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:37:33,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:37:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 01:37:34,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:37:34,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:37:34,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374673987] [2024-11-09 01:37:34,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:37:34,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66924598] [2024-11-09 01:37:34,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66924598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:37:34,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [355839650] [2024-11-09 01:37:34,858 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 01:37:34,859 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:37:34,859 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:37:34,859 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:37:34,859 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:37:57,307 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2024-11-09 01:37:57,317 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:38:09,025 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_214| Int)) (let ((.cse5 (= (mod |v_ULTIMATE.start_main_~a~0#1_214| 2) 0)) (.cse4 (+ |v_ULTIMATE.start_main_~a~0#1_214| 1))) (let ((.cse2 (<= .cse4 0)) (.cse3 (not .cse5)) (.cse0 (div |v_ULTIMATE.start_main_~a~0#1_214| 2)) (.cse1 (or (< 0 .cse4) .cse5))) (and (or (and (<= 0 (+ .cse0 9223372036854775808)) .cse1) (and .cse2 (<= 0 (+ .cse0 9223372036854775809)) .cse3)) (or (and .cse2 .cse3 (<= .cse0 9223372036854775806)) (and (<= .cse0 9223372036854775807) .cse1)) (or (and (= (+ .cse0 1) |c_ULTIMATE.start_main_~a~0#1|) .cse2 .cse3) (and (= .cse0 |c_ULTIMATE.start_main_~a~0#1|) .cse1)))))) is different from true [2024-11-09 01:38:34,452 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '78121#(and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_218| Int) (|v_ULTIMATE.start_main_~a~0#1_217| Int) (|v_ULTIMATE.start_main_~p~0#1_126| Int)) (and (<= (* |v_ULTIMATE.start_main_~a~0#1_217| |v_ULTIMATE.start_main_~b~0#1_218| |v_ULTIMATE.start_main_~p~0#1_126|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_217| |v_ULTIMATE.start_main_~b~0#1_218|))) (<= (* |v_ULTIMATE.start_main_~a~0#1_217| |v_ULTIMATE.start_main_~b~0#1_218|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_217| |v_ULTIMATE.start_main_~b~0#1_218| |v_ULTIMATE.start_main_~p~0#1_126|))))))' at error location [2024-11-09 01:38:34,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:38:34,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:38:34,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-09 01:38:34,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287245981] [2024-11-09 01:38:34,452 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:38:34,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:38:34,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:38:34,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:38:34,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=729, Unknown=11, NotChecked=58, Total=992 [2024-11-09 01:38:34,454 INFO L87 Difference]: Start difference. First operand 1282 states and 1585 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:38:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:38:35,955 INFO L93 Difference]: Finished difference Result 1439 states and 1782 transitions. [2024-11-09 01:38:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:38:35,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2024-11-09 01:38:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:38:35,958 INFO L225 Difference]: With dead ends: 1439 [2024-11-09 01:38:35,958 INFO L226 Difference]: Without dead ends: 1438 [2024-11-09 01:38:35,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 37.4s TimeCoverageRelationStatistics Valid=210, Invalid=839, Unknown=11, NotChecked=62, Total=1122 [2024-11-09 01:38:35,959 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 66 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:38:35,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 157 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 01:38:35,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-09 01:38:36,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1351. [2024-11-09 01:38:36,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1271 states have (on average 1.2297403619197482) internal successors, (1563), 1293 states have internal predecessors, (1563), 50 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 01:38:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1663 transitions. [2024-11-09 01:38:36,108 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1663 transitions. Word has length 57 [2024-11-09 01:38:36,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:38:36,108 INFO L471 AbstractCegarLoop]: Abstraction has 1351 states and 1663 transitions. [2024-11-09 01:38:36,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 01:38:36,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1663 transitions. [2024-11-09 01:38:36,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 01:38:36,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:38:36,110 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:38:36,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-09 01:38:36,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:38:36,314 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 01:38:36,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:38:36,314 INFO L85 PathProgramCache]: Analyzing trace with hash 950518840, now seen corresponding path program 2 times [2024-11-09 01:38:36,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:38:36,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79282425] [2024-11-09 01:38:36,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:38:36,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:38:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 01:38:36,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1782998640] [2024-11-09 01:38:36,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:38:36,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:38:36,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:38:36,346 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:38:36,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98532b3a-5b42-403c-9273-60236592255b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-09 01:38:36,411 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 01:38:36,411 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:38:36,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:38:36,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:38:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:38:45,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:38:45,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:38:45,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79282425] [2024-11-09 01:38:45,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 01:38:45,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782998640] [2024-11-09 01:38:45,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782998640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:38:45,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [555446934] [2024-11-09 01:38:45,684 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 01:38:45,684 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:38:45,684 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:38:45,684 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:38:45,684 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:39:08,869 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2024-11-09 01:39:08,879 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:39:15,315 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_232| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_main_~a~0#1_232| 1)) (.cse4 (= (mod |v_ULTIMATE.start_main_~a~0#1_232| 2) 0))) (let ((.cse2 (not .cse4)) (.cse3 (<= .cse5 0)) (.cse0 (or .cse4 (< 0 .cse5))) (.cse1 (div |v_ULTIMATE.start_main_~a~0#1_232| 2))) (and (or (and .cse0 (= .cse1 |c_ULTIMATE.start_main_~a~0#1|)) (and (= (+ .cse1 1) |c_ULTIMATE.start_main_~a~0#1|) .cse2 .cse3)) (or (and .cse2 (<= 0 (+ .cse1 9223372036854775809)) .cse3) (and .cse0 (<= 0 (+ .cse1 9223372036854775808)))) (or (and (<= .cse1 9223372036854775806) .cse2 .cse3) (and .cse0 (<= .cse1 9223372036854775807))))))) is different from true [2024-11-09 01:39:54,067 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '81403#(and (<= 0 (+ ~counter~0 2147483648)) (exists ((|v_ULTIMATE.start_main_~a~0#1_235| Int) (|v_ULTIMATE.start_main_~b~0#1_225| Int) (|v_ULTIMATE.start_main_~p~0#1_133| Int)) (and (<= (* |v_ULTIMATE.start_main_~a~0#1_235| |v_ULTIMATE.start_main_~b~0#1_225| |v_ULTIMATE.start_main_~p~0#1_133|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_235| |v_ULTIMATE.start_main_~b~0#1_225|))) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_235| |v_ULTIMATE.start_main_~b~0#1_225| |v_ULTIMATE.start_main_~p~0#1_133|))) (<= (* |v_ULTIMATE.start_main_~a~0#1_235| |v_ULTIMATE.start_main_~b~0#1_225|) 9223372036854775807))) (<= ~counter~0 2147483647))' at error location [2024-11-09 01:39:54,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:39:54,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:39:54,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 01:39:54,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364215457] [2024-11-09 01:39:54,068 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 01:39:54,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:39:54,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:39:54,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:39:54,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=904, Unknown=13, NotChecked=64, Total=1190 [2024-11-09 01:39:54,069 INFO L87 Difference]: Start difference. First operand 1351 states and 1663 transitions. Second operand has 7 states, 5 states have (on average 8.2) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:39:56,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:00,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:02,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:04,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:06,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:08,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:10,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:12,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:14,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:16,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:18,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:20,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:22,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:24,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:26,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:28,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:30,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:32,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:34,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:36,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:38,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:42,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:45,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:47,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:49,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:51,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:53,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:55,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:57,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:40:59,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:41:01,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:41:03,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:41:05,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:41:07,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:41:09,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:41:11,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:41:13,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:41:15,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 01:41:17,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]