./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound20.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_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/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_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/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_12089137-35e3-476d-bbb8-f168448580d0/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 93ad3f0e42b4c26a38d8e528f550b89aecdadec634fd1fe3b21f86af4528c655 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:44:31,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:44:31,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:44:31,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:44:31,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:44:31,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:44:31,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:44:31,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:44:31,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:44:31,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:44:31,420 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:44:31,420 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:44:31,421 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:44:31,424 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:44:31,424 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:44:31,424 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:44:31,425 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:44:31,425 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:44:31,425 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:44:31,426 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:44:31,426 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:44:31,427 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:44:31,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:44:31,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:44:31,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:44:31,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:44:31,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:44:31,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:44:31,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:44:31,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:44:31,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:44:31,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:44:31,436 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:44:31,436 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:44:31,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:44:31,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:44:31,437 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:44:31,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:44:31,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:44:31,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:44:31,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:44:31,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:44:31,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:44:31,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:44:31,441 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:44:31,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:44:31,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:44:31,442 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:44:31,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:44:31,442 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_12089137-35e3-476d-bbb8-f168448580d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ad3f0e42b4c26a38d8e528f550b89aecdadec634fd1fe3b21f86af4528c655 [2024-11-09 05:44:31,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:44:31,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:44:31,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:44:31,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:44:31,711 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:44:31,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound20.c Unable to find full path for "g++" [2024-11-09 05:44:33,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:44:33,874 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:44:33,874 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound20.c [2024-11-09 05:44:33,881 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/data/af9af44c3/566e1fb4119949ea93715c2786eff6f7/FLAG2880c19ce [2024-11-09 05:44:34,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/data/af9af44c3/566e1fb4119949ea93715c2786eff6f7 [2024-11-09 05:44:34,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:44:34,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:44:34,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:44:34,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:44:34,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:44:34,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,286 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0af1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34, skipping insertion in model container [2024-11-09 05:44:34,286 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:44:34,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:44:34,512 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:44:34,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:44:34,551 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:44:34,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34 WrapperNode [2024-11-09 05:44:34,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:44:34,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:44:34,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:44:34,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:44:34,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,587 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2024-11-09 05:44:34,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:44:34,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:44:34,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:44:34,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:44:34,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:44:34,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:44:34,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:44:34,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:44:34,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (1/1) ... [2024-11-09 05:44:34,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:44:34,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:34,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:44:34,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:44:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:44:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:44:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:44:34,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:44:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:44:34,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:44:34,723 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:44:34,725 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:44:35,065 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-09 05:44:35,066 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:44:35,123 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:44:35,123 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:44:35,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:44:35 BoogieIcfgContainer [2024-11-09 05:44:35,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:44:35,127 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:44:35,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:44:35,130 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:44:35,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:44:34" (1/3) ... [2024-11-09 05:44:35,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16361ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:44:35, skipping insertion in model container [2024-11-09 05:44:35,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:34" (2/3) ... [2024-11-09 05:44:35,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16361ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:44:35, skipping insertion in model container [2024-11-09 05:44:35,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:44:35" (3/3) ... [2024-11-09 05:44:35,134 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound20.c [2024-11-09 05:44:35,153 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:44:35,153 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2024-11-09 05:44:35,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:44:35,243 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;@19e2f3cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:44:35,244 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-09 05:44:35,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 43 states have (on average 1.930232558139535) internal successors, (83), 77 states have internal predecessors, (83), 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 05:44:35,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 05:44:35,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:35,253 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 05:44:35,254 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:35,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash 186048, now seen corresponding path program 1 times [2024-11-09 05:44:35,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:35,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560304957] [2024-11-09 05:44:35,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:35,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:35,458 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 05:44:35,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:35,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560304957] [2024-11-09 05:44:35,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560304957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:35,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:35,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:44:35,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772279198] [2024-11-09 05:44:35,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:35,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:44:35,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:35,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:44:35,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:44:35,505 INFO L87 Difference]: Start difference. First operand has 86 states, 43 states have (on average 1.930232558139535) internal successors, (83), 77 states have internal predecessors, (83), 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) 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 05:44:35,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:35,554 INFO L93 Difference]: Finished difference Result 171 states and 193 transitions. [2024-11-09 05:44:35,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:44:35,557 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 05:44:35,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:35,568 INFO L225 Difference]: With dead ends: 171 [2024-11-09 05:44:35,569 INFO L226 Difference]: Without dead ends: 83 [2024-11-09 05:44:35,572 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 05:44:35,578 INFO L432 NwaCegarLoop]: 92 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, 92 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 05:44:35,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:44:35,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-09 05:44:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-09 05:44:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 42 states have (on average 1.880952380952381) internal successors, (79), 75 states have internal predecessors, (79), 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 05:44:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2024-11-09 05:44:35,639 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 3 [2024-11-09 05:44:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:35,641 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2024-11-09 05:44:35,641 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 05:44:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2024-11-09 05:44:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 05:44:35,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:35,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 05:44:35,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:44:35,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:35,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash 183007, now seen corresponding path program 1 times [2024-11-09 05:44:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:35,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993395062] [2024-11-09 05:44:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:35,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:35,800 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 05:44:35,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:35,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993395062] [2024-11-09 05:44:35,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993395062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:35,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:35,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:44:35,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166289732] [2024-11-09 05:44:35,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:35,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:44:35,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:35,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:44:35,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:44:35,810 INFO L87 Difference]: Start difference. First operand 83 states and 91 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 05:44:35,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:35,896 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2024-11-09 05:44:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:44:35,898 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 05:44:35,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:35,899 INFO L225 Difference]: With dead ends: 97 [2024-11-09 05:44:35,901 INFO L226 Difference]: Without dead ends: 87 [2024-11-09 05:44:35,902 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 05:44:35,904 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 4 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:35,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 251 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:44:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-09 05:44:35,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-09 05:44:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.8043478260869565) internal successors, (83), 79 states have internal predecessors, (83), 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 05:44:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2024-11-09 05:44:35,925 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 3 [2024-11-09 05:44:35,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:35,926 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2024-11-09 05:44:35,926 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 05:44:35,926 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2024-11-09 05:44:35,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:44:35,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:35,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:44:35,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:44:35,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:35,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:35,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1157041074, now seen corresponding path program 1 times [2024-11-09 05:44:35,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:35,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72789232] [2024-11-09 05:44:35,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:35,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:44:35,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1691601021] [2024-11-09 05:44:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:35,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:35,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:35,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:35,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:44:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:36,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:44:36,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:36,069 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 05:44:36,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:36,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:36,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72789232] [2024-11-09 05:44:36,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:44:36,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691601021] [2024-11-09 05:44:36,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691601021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:36,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:36,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:44:36,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348296110] [2024-11-09 05:44:36,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:36,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:44:36,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:36,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:44:36,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:44:36,077 INFO L87 Difference]: Start difference. First operand 87 states and 95 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 05:44:36,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:36,262 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2024-11-09 05:44:36,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:44:36,263 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 05:44:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:36,264 INFO L225 Difference]: With dead ends: 110 [2024-11-09 05:44:36,264 INFO L226 Difference]: Without dead ends: 108 [2024-11-09 05:44:36,265 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 05:44:36,266 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 18 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:36,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 155 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:44:36,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-09 05:44:36,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 89. [2024-11-09 05:44:36,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 48 states have (on average 1.7708333333333333) internal successors, (85), 81 states have internal predecessors, (85), 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 05:44:36,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2024-11-09 05:44:36,279 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 6 [2024-11-09 05:44:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:36,279 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2024-11-09 05:44:36,280 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 05:44:36,280 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2024-11-09 05:44:36,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:44:36,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:36,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:36,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:44:36,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:36,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:36,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:36,487 INFO L85 PathProgramCache]: Analyzing trace with hash 903440272, now seen corresponding path program 1 times [2024-11-09 05:44:36,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:36,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641973816] [2024-11-09 05:44:36,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:36,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:44:36,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370752404] [2024-11-09 05:44:36,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:36,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:36,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:36,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:36,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:44:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:36,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:44:36,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:36,608 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 05:44:36,608 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:36,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:36,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641973816] [2024-11-09 05:44:36,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:44:36,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370752404] [2024-11-09 05:44:36,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370752404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:36,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:36,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:44:36,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431731333] [2024-11-09 05:44:36,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:36,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:44:36,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:36,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:44:36,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:44:36,613 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (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 05:44:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:36,836 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2024-11-09 05:44:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:44:36,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (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 11 [2024-11-09 05:44:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:36,838 INFO L225 Difference]: With dead ends: 151 [2024-11-09 05:44:36,838 INFO L226 Difference]: Without dead ends: 145 [2024-11-09 05:44:36,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 05:44:36,840 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 51 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:36,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 130 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:44:36,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-09 05:44:36,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 123. [2024-11-09 05:44:36,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 76 states have (on average 1.763157894736842) internal successors, (134), 109 states have internal predecessors, (134), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:44:36,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 158 transitions. [2024-11-09 05:44:36,852 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 158 transitions. Word has length 11 [2024-11-09 05:44:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:36,852 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 158 transitions. [2024-11-09 05:44:36,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (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 05:44:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 158 transitions. [2024-11-09 05:44:36,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 05:44:36,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:36,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:36,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:44:37,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:37,054 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:37,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:37,055 INFO L85 PathProgramCache]: Analyzing trace with hash 622709554, now seen corresponding path program 1 times [2024-11-09 05:44:37,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:37,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149101885] [2024-11-09 05:44:37,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:37,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:44:37,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997760329] [2024-11-09 05:44:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:37,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:37,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:37,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:37,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:44:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:37,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:44:37,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:37,258 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 05:44:37,261 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:37,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:37,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149101885] [2024-11-09 05:44:37,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:44:37,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997760329] [2024-11-09 05:44:37,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997760329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:37,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:37,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:44:37,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255602855] [2024-11-09 05:44:37,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:37,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:44:37,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:37,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:44:37,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:44:37,264 INFO L87 Difference]: Start difference. First operand 123 states and 158 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 05:44:37,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:37,459 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2024-11-09 05:44:37,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:44:37,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 13 [2024-11-09 05:44:37,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:37,461 INFO L225 Difference]: With dead ends: 144 [2024-11-09 05:44:37,461 INFO L226 Difference]: Without dead ends: 141 [2024-11-09 05:44:37,462 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 05:44:37,463 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 45 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:37,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 121 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:44:37,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-09 05:44:37,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 124. [2024-11-09 05:44:37,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 77 states have (on average 1.7272727272727273) internal successors, (133), 110 states have internal predecessors, (133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:44:37,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 157 transitions. [2024-11-09 05:44:37,490 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 157 transitions. Word has length 13 [2024-11-09 05:44:37,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:37,490 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 157 transitions. [2024-11-09 05:44:37,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 05:44:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 157 transitions. [2024-11-09 05:44:37,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:44:37,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:37,491 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:37,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:44:37,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:37,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:37,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:37,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2124127055, now seen corresponding path program 1 times [2024-11-09 05:44:37,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:37,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192478927] [2024-11-09 05:44:37,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:37,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:44:37,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162485213] [2024-11-09 05:44:37,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:37,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:37,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:37,711 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:37,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:44:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:37,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:44:37,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:37,872 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 05:44:37,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:37,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:37,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192478927] [2024-11-09 05:44:37,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:44:37,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162485213] [2024-11-09 05:44:37,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162485213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:37,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:37,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:44:37,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13056216] [2024-11-09 05:44:37,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:37,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:44:37,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:37,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:44:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:44:37,875 INFO L87 Difference]: Start difference. First operand 124 states and 157 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 05:44:38,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:38,115 INFO L93 Difference]: Finished difference Result 144 states and 162 transitions. [2024-11-09 05:44:38,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:44:38,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14 [2024-11-09 05:44:38,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:38,117 INFO L225 Difference]: With dead ends: 144 [2024-11-09 05:44:38,117 INFO L226 Difference]: Without dead ends: 137 [2024-11-09 05:44:38,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:44:38,118 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 44 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:38,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 124 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:44:38,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-09 05:44:38,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 121. [2024-11-09 05:44:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 74 states have (on average 1.7162162162162162) internal successors, (127), 107 states have internal predecessors, (127), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:44:38,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 151 transitions. [2024-11-09 05:44:38,137 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 151 transitions. Word has length 14 [2024-11-09 05:44:38,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:38,137 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 151 transitions. [2024-11-09 05:44:38,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 05:44:38,138 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 151 transitions. [2024-11-09 05:44:38,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 05:44:38,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:38,138 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:38,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:44:38,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:44:38,343 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:38,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:38,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1093961277, now seen corresponding path program 1 times [2024-11-09 05:44:38,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:38,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354299770] [2024-11-09 05:44:38,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:38,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:44:38,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:38,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354299770] [2024-11-09 05:44:38,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354299770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:38,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:38,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:44:38,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832242850] [2024-11-09 05:44:38,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:38,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:44:38,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:38,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:44:38,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:44:38,484 INFO L87 Difference]: Start difference. First operand 121 states and 151 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:44:38,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:38,610 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2024-11-09 05:44:38,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:44:38,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-09 05:44:38,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:38,612 INFO L225 Difference]: With dead ends: 150 [2024-11-09 05:44:38,612 INFO L226 Difference]: Without dead ends: 149 [2024-11-09 05:44:38,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:44:38,613 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 62 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:38,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 453 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:44:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-09 05:44:38,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2024-11-09 05:44:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 75 states have (on average 1.6933333333333334) internal successors, (127), 108 states have internal predecessors, (127), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:44:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2024-11-09 05:44:38,630 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 20 [2024-11-09 05:44:38,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:38,631 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2024-11-09 05:44:38,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:44:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2024-11-09 05:44:38,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:44:38,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:38,632 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:38,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:44:38,633 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:38,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:38,633 INFO L85 PathProgramCache]: Analyzing trace with hash 446938860, now seen corresponding path program 1 times [2024-11-09 05:44:38,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:38,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107985093] [2024-11-09 05:44:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:38,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:44:38,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:38,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107985093] [2024-11-09 05:44:38,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107985093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:38,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:38,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:44:38,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376748834] [2024-11-09 05:44:38,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:38,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:44:38,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:38,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:44:38,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:44:38,810 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:44:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:38,897 INFO L93 Difference]: Finished difference Result 211 states and 248 transitions. [2024-11-09 05:44:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:44:38,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-09 05:44:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:38,900 INFO L225 Difference]: With dead ends: 211 [2024-11-09 05:44:38,900 INFO L226 Difference]: Without dead ends: 129 [2024-11-09 05:44:38,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:44:38,902 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 9 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:38,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 328 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:44:38,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-09 05:44:38,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-09 05:44:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 80 states have (on average 1.65) internal successors, (132), 113 states have internal predecessors, (132), 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 05:44:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions. [2024-11-09 05:44:38,923 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 21 [2024-11-09 05:44:38,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:38,923 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 156 transitions. [2024-11-09 05:44:38,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:44:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions. [2024-11-09 05:44:38,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 05:44:38,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:38,924 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:38,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:44:38,929 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:38,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:38,931 INFO L85 PathProgramCache]: Analyzing trace with hash 11517550, now seen corresponding path program 1 times [2024-11-09 05:44:38,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:38,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856361362] [2024-11-09 05:44:38,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:38,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:44:38,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004003113] [2024-11-09 05:44:38,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:38,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:38,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:38,961 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:38,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:44:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:39,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:44:39,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:39,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:44:39,089 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:39,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:39,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856361362] [2024-11-09 05:44:39,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:44:39,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004003113] [2024-11-09 05:44:39,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004003113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:39,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:39,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:44:39,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839070312] [2024-11-09 05:44:39,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:39,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:44:39,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:39,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:44:39,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:44:39,092 INFO L87 Difference]: Start difference. First operand 129 states and 156 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:44:39,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:39,268 INFO L93 Difference]: Finished difference Result 205 states and 275 transitions. [2024-11-09 05:44:39,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:44:39,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-09 05:44:39,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:39,270 INFO L225 Difference]: With dead ends: 205 [2024-11-09 05:44:39,271 INFO L226 Difference]: Without dead ends: 199 [2024-11-09 05:44:39,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 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 05:44:39,272 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 123 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:39,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 88 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:44:39,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-09 05:44:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 179. [2024-11-09 05:44:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 123 states have (on average 1.6178861788617886) internal successors, (199), 155 states have internal predecessors, (199), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:44:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2024-11-09 05:44:39,298 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 23 [2024-11-09 05:44:39,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:39,300 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2024-11-09 05:44:39,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:44:39,301 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2024-11-09 05:44:39,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:44:39,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:39,301 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:39,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:44:39,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:39,507 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:39,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:39,508 INFO L85 PathProgramCache]: Analyzing trace with hash 357044138, now seen corresponding path program 1 times [2024-11-09 05:44:39,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:39,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84280250] [2024-11-09 05:44:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:39,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:44:39,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726071940] [2024-11-09 05:44:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:39,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:39,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:39,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:39,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:44:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:39,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:44:39,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:39,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:44:39,683 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:39,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:39,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84280250] [2024-11-09 05:44:39,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:44:39,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726071940] [2024-11-09 05:44:39,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726071940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:39,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:39,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:44:39,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683103603] [2024-11-09 05:44:39,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:39,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:44:39,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:39,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:44:39,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:44:39,686 INFO L87 Difference]: Start difference. First operand 179 states and 239 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:44:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:39,955 INFO L93 Difference]: Finished difference Result 258 states and 333 transitions. [2024-11-09 05:44:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:44:39,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-09 05:44:39,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:39,959 INFO L225 Difference]: With dead ends: 258 [2024-11-09 05:44:39,959 INFO L226 Difference]: Without dead ends: 255 [2024-11-09 05:44:39,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 05:44:39,960 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 128 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:39,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 136 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:44:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-09 05:44:39,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 216. [2024-11-09 05:44:39,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 155 states have (on average 1.6258064516129032) internal successors, (252), 187 states have internal predecessors, (252), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:44:39,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 302 transitions. [2024-11-09 05:44:39,986 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 302 transitions. Word has length 24 [2024-11-09 05:44:39,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:39,986 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 302 transitions. [2024-11-09 05:44:39,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:44:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 302 transitions. [2024-11-09 05:44:39,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 05:44:39,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:39,987 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:40,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 05:44:40,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:44:40,188 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:40,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash -344715730, now seen corresponding path program 1 times [2024-11-09 05:44:40,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:40,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29332052] [2024-11-09 05:44:40,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:40,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:40,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29332052] [2024-11-09 05:44:40,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29332052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:40,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:40,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:44:40,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683442195] [2024-11-09 05:44:40,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:40,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:44:40,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:40,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:44:40,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:44:40,274 INFO L87 Difference]: Start difference. First operand 216 states and 302 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:40,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:40,410 INFO L93 Difference]: Finished difference Result 216 states and 302 transitions. [2024-11-09 05:44:40,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:44:40,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-11-09 05:44:40,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:40,412 INFO L225 Difference]: With dead ends: 216 [2024-11-09 05:44:40,412 INFO L226 Difference]: Without dead ends: 214 [2024-11-09 05:44:40,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:44:40,413 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 103 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:40,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 64 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:44:40,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-09 05:44:40,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-09 05:44:40,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 155 states have (on average 1.5806451612903225) internal successors, (245), 185 states have internal predecessors, (245), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:44:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 295 transitions. [2024-11-09 05:44:40,431 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 295 transitions. Word has length 38 [2024-11-09 05:44:40,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:40,431 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 295 transitions. [2024-11-09 05:44:40,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:40,432 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 295 transitions. [2024-11-09 05:44:40,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 05:44:40,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:40,435 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:40,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 05:44:40,435 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:40,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:40,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2096252935, now seen corresponding path program 1 times [2024-11-09 05:44:40,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:40,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266259964] [2024-11-09 05:44:40,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:40,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:40,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:40,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266259964] [2024-11-09 05:44:40,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266259964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:40,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:40,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:44:40,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786949348] [2024-11-09 05:44:40,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:40,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:44:40,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:40,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:44:40,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:44:40,554 INFO L87 Difference]: Start difference. First operand 214 states and 295 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:40,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:40,758 INFO L93 Difference]: Finished difference Result 254 states and 324 transitions. [2024-11-09 05:44:40,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:44:40,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2024-11-09 05:44:40,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:40,760 INFO L225 Difference]: With dead ends: 254 [2024-11-09 05:44:40,762 INFO L226 Difference]: Without dead ends: 252 [2024-11-09 05:44:40,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:44:40,763 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 136 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:40,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 78 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:44:40,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-09 05:44:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 218. [2024-11-09 05:44:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.5471698113207548) internal successors, (246), 189 states have internal predecessors, (246), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:44:40,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 296 transitions. [2024-11-09 05:44:40,784 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 296 transitions. Word has length 39 [2024-11-09 05:44:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:40,786 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 296 transitions. [2024-11-09 05:44:40,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:40,786 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 296 transitions. [2024-11-09 05:44:40,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 05:44:40,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:40,789 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:40,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:44:40,789 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:40,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:40,790 INFO L85 PathProgramCache]: Analyzing trace with hash -159405295, now seen corresponding path program 1 times [2024-11-09 05:44:40,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:40,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240161753] [2024-11-09 05:44:40,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:40,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:40,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:40,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240161753] [2024-11-09 05:44:40,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240161753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:40,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:40,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:44:40,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524297531] [2024-11-09 05:44:40,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:40,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:44:40,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:40,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:44:40,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:44:40,899 INFO L87 Difference]: Start difference. First operand 218 states and 296 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:40,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:40,978 INFO L93 Difference]: Finished difference Result 226 states and 296 transitions. [2024-11-09 05:44:40,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:44:40,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2024-11-09 05:44:40,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:40,981 INFO L225 Difference]: With dead ends: 226 [2024-11-09 05:44:40,982 INFO L226 Difference]: Without dead ends: 225 [2024-11-09 05:44:40,983 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 05:44:40,983 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 17 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:40,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 138 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:44:40,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-09 05:44:41,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 218. [2024-11-09 05:44:41,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.5345911949685536) internal successors, (244), 189 states have internal predecessors, (244), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:44:41,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 294 transitions. [2024-11-09 05:44:41,004 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 294 transitions. Word has length 41 [2024-11-09 05:44:41,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:41,004 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 294 transitions. [2024-11-09 05:44:41,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 294 transitions. [2024-11-09 05:44:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:44:41,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:41,006 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:41,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 05:44:41,006 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:41,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:41,007 INFO L85 PathProgramCache]: Analyzing trace with hash -646596717, now seen corresponding path program 1 times [2024-11-09 05:44:41,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:41,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399473743] [2024-11-09 05:44:41,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:41,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:41,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:41,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399473743] [2024-11-09 05:44:41,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399473743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:41,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:41,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:44:41,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449299326] [2024-11-09 05:44:41,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:41,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:44:41,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:41,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:44:41,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:44:41,080 INFO L87 Difference]: Start difference. First operand 218 states and 294 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 05:44:41,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:41,197 INFO L93 Difference]: Finished difference Result 365 states and 507 transitions. [2024-11-09 05:44:41,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:44:41,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-09 05:44:41,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:41,200 INFO L225 Difference]: With dead ends: 365 [2024-11-09 05:44:41,200 INFO L226 Difference]: Without dead ends: 364 [2024-11-09 05:44:41,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:44:41,201 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 43 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:41,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 193 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:44:41,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-09 05:44:41,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 331. [2024-11-09 05:44:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 257 states have (on average 1.583657587548638) internal successors, (407), 287 states have internal predecessors, (407), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 05:44:41,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 487 transitions. [2024-11-09 05:44:41,225 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 487 transitions. Word has length 42 [2024-11-09 05:44:41,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:41,225 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 487 transitions. [2024-11-09 05:44:41,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 05:44:41,225 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 487 transitions. [2024-11-09 05:44:41,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:44:41,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:41,226 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:41,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 05:44:41,226 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:41,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:41,227 INFO L85 PathProgramCache]: Analyzing trace with hash -646595435, now seen corresponding path program 1 times [2024-11-09 05:44:41,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:41,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677903194] [2024-11-09 05:44:41,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:41,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:41,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:41,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677903194] [2024-11-09 05:44:41,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677903194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:41,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:41,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:44:41,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350453548] [2024-11-09 05:44:41,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:41,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:44:41,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:41,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:44:41,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:44:41,333 INFO L87 Difference]: Start difference. First operand 331 states and 487 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:41,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:41,867 INFO L93 Difference]: Finished difference Result 368 states and 517 transitions. [2024-11-09 05:44:41,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:44:41,867 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-09 05:44:41,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:41,869 INFO L225 Difference]: With dead ends: 368 [2024-11-09 05:44:41,869 INFO L226 Difference]: Without dead ends: 367 [2024-11-09 05:44:41,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:44:41,870 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 164 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:41,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 252 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:44:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-09 05:44:41,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 331. [2024-11-09 05:44:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 257 states have (on average 1.5603112840466926) internal successors, (401), 287 states have internal predecessors, (401), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 05:44:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 481 transitions. [2024-11-09 05:44:41,899 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 481 transitions. Word has length 42 [2024-11-09 05:44:41,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:41,901 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 481 transitions. [2024-11-09 05:44:41,901 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:41,901 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 481 transitions. [2024-11-09 05:44:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 05:44:41,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:41,905 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:44:41,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 05:44:41,905 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:41,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:41,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1430338387, now seen corresponding path program 1 times [2024-11-09 05:44:41,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145497059] [2024-11-09 05:44:41,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:41,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:42,024 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:42,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145497059] [2024-11-09 05:44:42,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145497059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:42,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:42,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:44:42,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974774496] [2024-11-09 05:44:42,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:42,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:44:42,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:42,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:44:42,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:44:42,027 INFO L87 Difference]: Start difference. First operand 331 states and 481 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:42,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:42,396 INFO L93 Difference]: Finished difference Result 356 states and 502 transitions. [2024-11-09 05:44:42,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:44:42,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-09 05:44:42,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:42,398 INFO L225 Difference]: With dead ends: 356 [2024-11-09 05:44:42,398 INFO L226 Difference]: Without dead ends: 354 [2024-11-09 05:44:42,398 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 05:44:42,399 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:42,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 163 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:44:42,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-09 05:44:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 335. [2024-11-09 05:44:42,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 261 states have (on average 1.5517241379310345) internal successors, (405), 291 states have internal predecessors, (405), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 05:44:42,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 485 transitions. [2024-11-09 05:44:42,423 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 485 transitions. Word has length 43 [2024-11-09 05:44:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:42,423 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 485 transitions. [2024-11-09 05:44:42,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 485 transitions. [2024-11-09 05:44:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:44:42,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:42,424 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:42,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 05:44:42,425 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:42,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash 840475575, now seen corresponding path program 1 times [2024-11-09 05:44:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:42,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651330972] [2024-11-09 05:44:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:42,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:42,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:42,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651330972] [2024-11-09 05:44:42,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651330972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:42,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177947308] [2024-11-09 05:44:42,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:42,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:42,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:42,570 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:42,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:44:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:42,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:44:42,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:42,790 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:44:42,790 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:42,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177947308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:42,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:44:42,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 05:44:42,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671643339] [2024-11-09 05:44:42,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:42,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:44:42,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:42,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:44:42,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:44:42,793 INFO L87 Difference]: Start difference. First operand 335 states and 485 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:42,866 INFO L93 Difference]: Finished difference Result 335 states and 485 transitions. [2024-11-09 05:44:42,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:44:42,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-09 05:44:42,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:42,869 INFO L225 Difference]: With dead ends: 335 [2024-11-09 05:44:42,869 INFO L226 Difference]: Without dead ends: 333 [2024-11-09 05:44:42,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:44:42,870 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 114 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:42,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 216 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:44:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-09 05:44:42,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-09 05:44:42,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 261 states have (on average 1.5057471264367817) internal successors, (393), 289 states have internal predecessors, (393), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 05:44:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 473 transitions. [2024-11-09 05:44:42,894 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 473 transitions. Word has length 46 [2024-11-09 05:44:42,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:42,894 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 473 transitions. [2024-11-09 05:44:42,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:42,894 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 473 transitions. [2024-11-09 05:44:42,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:44:42,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:42,895 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:42,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:44:43,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 05:44:43,096 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:43,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:43,097 INFO L85 PathProgramCache]: Analyzing trace with hash 284939096, now seen corresponding path program 1 times [2024-11-09 05:44:43,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:43,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651395681] [2024-11-09 05:44:43,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:43,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:43,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:43,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651395681] [2024-11-09 05:44:43,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651395681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:43,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486877000] [2024-11-09 05:44:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:43,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:43,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:43,235 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:43,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:44:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:43,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:44:43,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:44:43,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:44:43,584 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:43,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486877000] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:43,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:44:43,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 6] total 18 [2024-11-09 05:44:43,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17734657] [2024-11-09 05:44:43,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:43,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:44:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:43,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:44:43,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:44:43,587 INFO L87 Difference]: Start difference. First operand 333 states and 473 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:43,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:43,774 INFO L93 Difference]: Finished difference Result 368 states and 495 transitions. [2024-11-09 05:44:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:44:43,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-11-09 05:44:43,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:43,777 INFO L225 Difference]: With dead ends: 368 [2024-11-09 05:44:43,777 INFO L226 Difference]: Without dead ends: 366 [2024-11-09 05:44:43,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2024-11-09 05:44:43,778 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 57 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:43,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 421 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:44:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-09 05:44:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 339. [2024-11-09 05:44:43,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 264 states have (on average 1.4696969696969697) internal successors, (388), 292 states have internal predecessors, (388), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 05:44:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 468 transitions. [2024-11-09 05:44:43,806 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 468 transitions. Word has length 47 [2024-11-09 05:44:43,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:43,807 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 468 transitions. [2024-11-09 05:44:43,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:43,807 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 468 transitions. [2024-11-09 05:44:43,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 05:44:43,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:43,808 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:43,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:44:44,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 05:44:44,009 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:44,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1051433997, now seen corresponding path program 1 times [2024-11-09 05:44:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:44,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108746249] [2024-11-09 05:44:44,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:44,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:44,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:44,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108746249] [2024-11-09 05:44:44,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108746249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:44,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679423970] [2024-11-09 05:44:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:44,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:44,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:44,149 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:44,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:44:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:44,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:44:44,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:44:44,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:44:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:44:44,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679423970] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:44:44,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [982145581] [2024-11-09 05:44:44,491 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 05:44:44,492 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:44:44,495 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:44:44,500 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:44:44,501 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:44:52,308 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-09 05:44:52,309 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:44:56,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [982145581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:56,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:44:56,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9, 7, 8] total 29 [2024-11-09 05:44:56,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651919225] [2024-11-09 05:44:56,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:56,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:44:56,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:56,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:44:56,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:44:56,380 INFO L87 Difference]: Start difference. First operand 339 states and 468 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:57,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:57,480 INFO L93 Difference]: Finished difference Result 476 states and 629 transitions. [2024-11-09 05:44:57,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:44:57,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-11-09 05:44:57,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:57,483 INFO L225 Difference]: With dead ends: 476 [2024-11-09 05:44:57,483 INFO L226 Difference]: Without dead ends: 320 [2024-11-09 05:44:57,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 106 SyntacticMatches, 21 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=182, Invalid=748, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:44:57,485 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 30 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:57,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 133 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:44:57,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-09 05:44:57,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 303. [2024-11-09 05:44:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 230 states have (on average 1.4130434782608696) internal successors, (325), 259 states have internal predecessors, (325), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 05:44:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 397 transitions. [2024-11-09 05:44:57,511 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 397 transitions. Word has length 49 [2024-11-09 05:44:57,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:57,512 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 397 transitions. [2024-11-09 05:44:57,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:44:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 397 transitions. [2024-11-09 05:44:57,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 05:44:57,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:57,513 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:57,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 05:44:57,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:57,714 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:44:57,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:57,714 INFO L85 PathProgramCache]: Analyzing trace with hash -789173253, now seen corresponding path program 1 times [2024-11-09 05:44:57,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:57,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122574576] [2024-11-09 05:44:57,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:57,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:57,850 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 05:44:57,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:57,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122574576] [2024-11-09 05:44:57,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122574576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:57,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058288056] [2024-11-09 05:44:57,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:57,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:57,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:57,853 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:57,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:44:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:57,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:44:57,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:44:58,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:44:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 05:44:58,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058288056] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:44:58,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1543389655] [2024-11-09 05:44:58,163 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:44:58,163 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:44:58,163 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:44:58,164 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:44:58,164 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:45:03,062 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:45:03,063 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:45:09,102 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11514#(and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 2147483647 ~counter~0) (<= |ULTIMATE.start_main_~y~0#1| 1073741823) (<= 0 (+ 4611686018427387903 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 1) 0) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0))' at error location [2024-11-09 05:45:09,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:45:09,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:45:09,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-09 05:45:09,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527296044] [2024-11-09 05:45:09,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:45:09,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 05:45:09,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:09,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 05:45:09,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1040, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 05:45:09,105 INFO L87 Difference]: Start difference. First operand 303 states and 397 transitions. Second operand has 19 states, 18 states have (on average 6.0) internal successors, (108), 19 states have internal predecessors, (108), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-09 05:45:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:09,697 INFO L93 Difference]: Finished difference Result 765 states and 981 transitions. [2024-11-09 05:45:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 05:45:09,698 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.0) internal successors, (108), 19 states have internal predecessors, (108), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 54 [2024-11-09 05:45:09,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:09,702 INFO L225 Difference]: With dead ends: 765 [2024-11-09 05:45:09,702 INFO L226 Difference]: Without dead ends: 651 [2024-11-09 05:45:09,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 114 SyntacticMatches, 20 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=462, Invalid=2294, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 05:45:09,704 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 374 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:09,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 669 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:45:09,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-09 05:45:09,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 524. [2024-11-09 05:45:09,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 413 states have (on average 1.460048426150121) internal successors, (603), 442 states have internal predecessors, (603), 68 states have call successors, (68), 14 states have call predecessors, (68), 14 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 05:45:09,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 739 transitions. [2024-11-09 05:45:09,756 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 739 transitions. Word has length 54 [2024-11-09 05:45:09,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:09,757 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 739 transitions. [2024-11-09 05:45:09,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.0) internal successors, (108), 19 states have internal predecessors, (108), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-09 05:45:09,757 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 739 transitions. [2024-11-09 05:45:09,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:45:09,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:09,758 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:09,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 05:45:09,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-09 05:45:09,960 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:45:09,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1813717949, now seen corresponding path program 1 times [2024-11-09 05:45:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:09,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914628757] [2024-11-09 05:45:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:09,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:45:09,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558771322] [2024-11-09 05:45:09,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:09,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:09,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:09,995 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:10,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:45:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:10,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:45:10,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 05:45:10,216 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:45:10,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:10,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914628757] [2024-11-09 05:45:10,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:45:10,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558771322] [2024-11-09 05:45:10,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558771322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:45:10,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:45:10,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:45:10,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476461946] [2024-11-09 05:45:10,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:45:10,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:45:10,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:10,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:45:10,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:45:10,218 INFO L87 Difference]: Start difference. First operand 524 states and 739 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:45:10,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:10,542 INFO L93 Difference]: Finished difference Result 545 states and 778 transitions. [2024-11-09 05:45:10,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:45:10,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 56 [2024-11-09 05:45:10,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:10,546 INFO L225 Difference]: With dead ends: 545 [2024-11-09 05:45:10,546 INFO L226 Difference]: Without dead ends: 541 [2024-11-09 05:45:10,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 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 05:45:10,547 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 134 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:10,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 151 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:45:10,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-09 05:45:10,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 516. [2024-11-09 05:45:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 409 states have (on average 1.374083129584352) internal successors, (562), 434 states have internal predecessors, (562), 68 states have call successors, (68), 14 states have call predecessors, (68), 14 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 05:45:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 698 transitions. [2024-11-09 05:45:10,591 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 698 transitions. Word has length 56 [2024-11-09 05:45:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:10,591 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 698 transitions. [2024-11-09 05:45:10,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:45:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 698 transitions. [2024-11-09 05:45:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 05:45:10,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:10,592 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:10,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 05:45:10,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 05:45:10,796 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:45:10,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:10,797 INFO L85 PathProgramCache]: Analyzing trace with hash 390681659, now seen corresponding path program 1 times [2024-11-09 05:45:10,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:10,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221509845] [2024-11-09 05:45:10,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:10,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:45:10,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932047495] [2024-11-09 05:45:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:10,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:10,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:10,815 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:10,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 05:45:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:10,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:45:10,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 05:45:11,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:45:11,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:11,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221509845] [2024-11-09 05:45:11,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:45:11,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932047495] [2024-11-09 05:45:11,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932047495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:11,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1433366500] [2024-11-09 05:45:11,238 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:45:11,238 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:45:11,239 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:45:11,239 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:45:11,239 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:45:15,271 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:45:15,272 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:45:21,669 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14807#(exists ((|v_ULTIMATE.start_main_~a~0#1_65| Int) (|v_ULTIMATE.start_main_~y~0#1_69| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_69| |v_ULTIMATE.start_main_~a~0#1_65|)) (exists ((|v_ULTIMATE.start_main_#t~post7#1_40| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 2 |v_ULTIMATE.start_main_#t~post7#1_40|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_69| 1073741823) (= ~counter~0 (+ |v_ULTIMATE.start_main_#t~post7#1_40| 1)) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |v_ULTIMATE.start_main_#t~post7#1_40| 19) (<= 0 (+ 4611686018427387903 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= 1 |v_ULTIMATE.start_main_~y~0#1_69|) (<= (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 1) 0) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0)))))' at error location [2024-11-09 05:45:21,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:45:21,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:45:21,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 05:45:21,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282515966] [2024-11-09 05:45:21,670 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:45:21,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:45:21,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:45:21,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-09 05:45:21,671 INFO L87 Difference]: Start difference. First operand 516 states and 698 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:45:21,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:21,962 INFO L93 Difference]: Finished difference Result 662 states and 931 transitions. [2024-11-09 05:45:21,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:45:21,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2024-11-09 05:45:21,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:21,967 INFO L225 Difference]: With dead ends: 662 [2024-11-09 05:45:21,967 INFO L226 Difference]: Without dead ends: 658 [2024-11-09 05:45:21,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 81 SyntacticMatches, 20 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-09 05:45:21,971 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 147 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:21,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 206 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:45:21,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-09 05:45:22,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 596. [2024-11-09 05:45:22,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 479 states have (on average 1.3757828810020878) internal successors, (659), 504 states have internal predecessors, (659), 78 states have call successors, (78), 14 states have call predecessors, (78), 14 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-09 05:45:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 815 transitions. [2024-11-09 05:45:22,033 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 815 transitions. Word has length 57 [2024-11-09 05:45:22,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:22,034 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 815 transitions. [2024-11-09 05:45:22,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 05:45:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 815 transitions. [2024-11-09 05:45:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 05:45:22,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:22,037 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:22,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 05:45:22,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-09 05:45:22,243 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:45:22,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1585799352, now seen corresponding path program 1 times [2024-11-09 05:45:22,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:22,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351353756] [2024-11-09 05:45:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:22,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:22,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:22,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351353756] [2024-11-09 05:45:22,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351353756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:22,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881843547] [2024-11-09 05:45:22,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:22,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:22,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:22,359 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:22,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:45:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:22,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:45:22,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:22,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:45:22,664 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:22,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881843547] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:45:22,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [788971979] [2024-11-09 05:45:22,666 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:45:22,666 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:45:22,667 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:45:22,667 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:45:22,667 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:45:26,287 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:45:26,288 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:45:32,543 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16797#(and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (= (mod (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) 2) 0) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (= |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= ~counter~0 20) (<= |ULTIMATE.start_main_~y~0#1| 1073741823) (<= 4611686018427387904 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= 3 ~counter~0))' at error location [2024-11-09 05:45:32,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:45:32,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:45:32,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 05:45:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617367524] [2024-11-09 05:45:32,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:45:32,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:45:32,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:32,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:45:32,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:45:32,545 INFO L87 Difference]: Start difference. First operand 596 states and 815 transitions. Second operand has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 8 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-11-09 05:45:33,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:33,575 INFO L93 Difference]: Finished difference Result 883 states and 1208 transitions. [2024-11-09 05:45:33,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:45:33,575 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 8 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) Word has length 72 [2024-11-09 05:45:33,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:33,579 INFO L225 Difference]: With dead ends: 883 [2024-11-09 05:45:33,580 INFO L226 Difference]: Without dead ends: 881 [2024-11-09 05:45:33,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 171 SyntacticMatches, 26 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=256, Invalid=934, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 05:45:33,581 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 435 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:33,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 441 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:45:33,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-09 05:45:33,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 619. [2024-11-09 05:45:33,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 497 states have (on average 1.3460764587525151) internal successors, (669), 521 states have internal predecessors, (669), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-09 05:45:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 837 transitions. [2024-11-09 05:45:33,638 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 837 transitions. Word has length 72 [2024-11-09 05:45:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:33,638 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 837 transitions. [2024-11-09 05:45:33,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 8 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-11-09 05:45:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 837 transitions. [2024-11-09 05:45:33,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 05:45:33,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:33,640 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:33,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 05:45:33,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 05:45:33,840 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:45:33,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:33,841 INFO L85 PathProgramCache]: Analyzing trace with hash 760216224, now seen corresponding path program 1 times [2024-11-09 05:45:33,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:33,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562172365] [2024-11-09 05:45:33,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:33,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:33,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:33,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562172365] [2024-11-09 05:45:33,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562172365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:45:33,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:45:33,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:45:33,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087489920] [2024-11-09 05:45:33,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:45:33,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:45:33,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:33,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:45:33,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:45:33,926 INFO L87 Difference]: Start difference. First operand 619 states and 837 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 05:45:34,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:34,055 INFO L93 Difference]: Finished difference Result 619 states and 837 transitions. [2024-11-09 05:45:34,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:45:34,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2024-11-09 05:45:34,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:34,058 INFO L225 Difference]: With dead ends: 619 [2024-11-09 05:45:34,059 INFO L226 Difference]: Without dead ends: 618 [2024-11-09 05:45:34,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:45:34,060 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 20 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:34,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 135 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:45:34,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-09 05:45:34,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2024-11-09 05:45:34,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 497 states have (on average 1.3380281690140845) internal successors, (665), 520 states have internal predecessors, (665), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-09 05:45:34,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 833 transitions. [2024-11-09 05:45:34,114 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 833 transitions. Word has length 74 [2024-11-09 05:45:34,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:34,115 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 833 transitions. [2024-11-09 05:45:34,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 05:45:34,115 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 833 transitions. [2024-11-09 05:45:34,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 05:45:34,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:34,117 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:34,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 05:45:34,117 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:45:34,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:34,118 INFO L85 PathProgramCache]: Analyzing trace with hash 423355170, now seen corresponding path program 1 times [2024-11-09 05:45:34,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:34,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379455971] [2024-11-09 05:45:34,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:34,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:34,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:34,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379455971] [2024-11-09 05:45:34,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379455971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:34,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304226383] [2024-11-09 05:45:34,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:34,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:34,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:34,236 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:34,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:45:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:34,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:45:34,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:34,498 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:45:34,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304226383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:45:34,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:45:34,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 05:45:34,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804756609] [2024-11-09 05:45:34,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:45:34,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:45:34,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:34,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:45:34,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:45:34,501 INFO L87 Difference]: Start difference. First operand 618 states and 833 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 05:45:34,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:34,861 INFO L93 Difference]: Finished difference Result 663 states and 914 transitions. [2024-11-09 05:45:34,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:45:34,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2024-11-09 05:45:34,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:34,865 INFO L225 Difference]: With dead ends: 663 [2024-11-09 05:45:34,865 INFO L226 Difference]: Without dead ends: 662 [2024-11-09 05:45:34,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:45:34,866 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 87 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:34,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 118 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:45:34,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-09 05:45:34,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 617. [2024-11-09 05:45:34,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 497 states have (on average 1.3219315895372235) internal successors, (657), 519 states have internal predecessors, (657), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-09 05:45:34,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 825 transitions. [2024-11-09 05:45:34,921 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 825 transitions. Word has length 76 [2024-11-09 05:45:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:34,922 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 825 transitions. [2024-11-09 05:45:34,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 05:45:34,922 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 825 transitions. [2024-11-09 05:45:34,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 05:45:34,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:34,923 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:34,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 05:45:35,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 05:45:35,124 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:45:35,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash 239108518, now seen corresponding path program 1 times [2024-11-09 05:45:35,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:35,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50312137] [2024-11-09 05:45:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:35,233 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:35,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:35,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50312137] [2024-11-09 05:45:35,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50312137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:35,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885396211] [2024-11-09 05:45:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:35,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:35,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:35,236 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:35,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 05:45:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:35,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:45:35,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:35,486 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:45:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:35,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885396211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:45:35,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [77706969] [2024-11-09 05:45:35,663 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:45:35,663 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:45:35,663 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:45:35,664 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:45:35,664 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:45:39,137 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:45:39,138 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:45:46,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [77706969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:45:46,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:45:46,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [4, 4, 4] total 28 [2024-11-09 05:45:46,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955957770] [2024-11-09 05:45:46,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:45:46,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 05:45:46,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:46,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 05:45:46,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:45:46,507 INFO L87 Difference]: Start difference. First operand 617 states and 825 transitions. Second operand has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 19 states have internal predecessors, (39), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 05:45:50,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:50,690 INFO L93 Difference]: Finished difference Result 642 states and 848 transitions. [2024-11-09 05:45:50,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 05:45:50,691 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 19 states have internal predecessors, (39), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 77 [2024-11-09 05:45:50,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:50,693 INFO L225 Difference]: With dead ends: 642 [2024-11-09 05:45:50,693 INFO L226 Difference]: Without dead ends: 638 [2024-11-09 05:45:50,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 177 SyntacticMatches, 29 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=354, Invalid=1206, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:45:50,695 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 37 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:50,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 98 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 05:45:50,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-09 05:45:50,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 627. [2024-11-09 05:45:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 507 states have (on average 1.2998027613412229) internal successors, (659), 529 states have internal predecessors, (659), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-09 05:45:50,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 827 transitions. [2024-11-09 05:45:50,761 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 827 transitions. Word has length 77 [2024-11-09 05:45:50,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:50,762 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 827 transitions. [2024-11-09 05:45:50,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 19 states have internal predecessors, (39), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 05:45:50,762 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 827 transitions. [2024-11-09 05:45:50,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 05:45:50,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:50,763 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:50,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 05:45:50,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 05:45:50,964 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:45:50,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:50,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2068841561, now seen corresponding path program 1 times [2024-11-09 05:45:50,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:50,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296346059] [2024-11-09 05:45:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:50,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:51,163 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:51,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:51,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296346059] [2024-11-09 05:45:51,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296346059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:51,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521968122] [2024-11-09 05:45:51,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:51,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:51,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:51,166 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:51,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 05:45:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:51,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:45:51,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 68 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:45:51,401 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:45:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:45:51,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521968122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:45:51,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [320958033] [2024-11-09 05:45:51,623 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:45:51,623 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:45:51,623 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:45:51,624 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:45:51,624 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:46:30,547 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:46:30,549 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:46:36,506 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24550#(and (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1| 1) (+ (* 2 |ULTIMATE.start_main_~b~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= 1 |#StackHeapBarrier|) (= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) (+ 9223372036854775808 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|)))' at error location [2024-11-09 05:46:36,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:46:36,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:46:36,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-09 05:46:36,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851681375] [2024-11-09 05:46:36,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:46:36,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 05:46:36,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:36,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 05:46:36,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=497, Invalid=3163, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 05:46:36,509 INFO L87 Difference]: Start difference. First operand 627 states and 827 transitions. Second operand has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 25 states have internal predecessors, (160), 9 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-09 05:46:37,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:37,422 INFO L93 Difference]: Finished difference Result 822 states and 1021 transitions. [2024-11-09 05:46:37,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-09 05:46:37,423 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 25 states have internal predecessors, (160), 9 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 80 [2024-11-09 05:46:37,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:37,426 INFO L225 Difference]: With dead ends: 822 [2024-11-09 05:46:37,427 INFO L226 Difference]: Without dead ends: 813 [2024-11-09 05:46:37,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 181 SyntacticMatches, 8 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2891 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=888, Invalid=6084, Unknown=0, NotChecked=0, Total=6972 [2024-11-09 05:46:37,430 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 255 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:37,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 957 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:46:37,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-09 05:46:37,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 657. [2024-11-09 05:46:37,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 529 states have (on average 1.2911153119092627) internal successors, (683), 554 states have internal predecessors, (683), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-09 05:46:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 863 transitions. [2024-11-09 05:46:37,505 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 863 transitions. Word has length 80 [2024-11-09 05:46:37,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:37,506 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 863 transitions. [2024-11-09 05:46:37,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 25 states have internal predecessors, (160), 9 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-09 05:46:37,506 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 863 transitions. [2024-11-09 05:46:37,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 05:46:37,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:37,508 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:46:37,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 05:46:37,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 05:46:37,712 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:46:37,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:37,713 INFO L85 PathProgramCache]: Analyzing trace with hash -297787203, now seen corresponding path program 1 times [2024-11-09 05:46:37,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:37,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678766196] [2024-11-09 05:46:37,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:37,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:46:37,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:46:37,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678766196] [2024-11-09 05:46:37,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678766196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:46:37,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115276200] [2024-11-09 05:46:37,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:37,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:37,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:37,823 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:46:37,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:46:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:37,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:46:37,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:38,007 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:46:38,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:38,229 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:46:38,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115276200] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:46:38,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [390492685] [2024-11-09 05:46:38,232 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2024-11-09 05:46:38,232 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:46:38,232 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:46:38,232 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:46:38,232 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:46:41,879 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-09 05:46:41,884 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:46:46,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [390492685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:46:46,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:46:46,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5, 5] total 21 [2024-11-09 05:46:46,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437945887] [2024-11-09 05:46:46,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:46:46,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:46:46,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:46,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:46:46,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-09 05:46:46,949 INFO L87 Difference]: Start difference. First operand 657 states and 863 transitions. Second operand has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:46:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:47,975 INFO L93 Difference]: Finished difference Result 664 states and 870 transitions. [2024-11-09 05:46:47,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:46:47,976 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-09 05:46:47,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:47,978 INFO L225 Difference]: With dead ends: 664 [2024-11-09 05:46:47,978 INFO L226 Difference]: Without dead ends: 663 [2024-11-09 05:46:47,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 197 SyntacticMatches, 41 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-11-09 05:46:47,979 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 12 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:47,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 123 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:46:47,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-09 05:46:48,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 656. [2024-11-09 05:46:48,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 529 states have (on average 1.289224952741021) internal successors, (682), 553 states have internal predecessors, (682), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-09 05:46:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 862 transitions. [2024-11-09 05:46:48,042 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 862 transitions. Word has length 85 [2024-11-09 05:46:48,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:48,043 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 862 transitions. [2024-11-09 05:46:48,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:46:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 862 transitions. [2024-11-09 05:46:48,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:46:48,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:48,044 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:46:48,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 05:46:48,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 05:46:48,245 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:46:48,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1369479481, now seen corresponding path program 1 times [2024-11-09 05:46:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:48,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9039997] [2024-11-09 05:46:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:46:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60702470] [2024-11-09 05:46:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:48,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:48,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:48,280 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:46:48,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 05:46:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:48,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:46:48,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:46:48,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:46:48,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:46:48,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9039997] [2024-11-09 05:46:48,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:46:48,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60702470] [2024-11-09 05:46:48,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60702470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:46:48,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:46:48,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:46:48,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117656908] [2024-11-09 05:46:48,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:46:48,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:46:48,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:48,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:46:48,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:46:48,746 INFO L87 Difference]: Start difference. First operand 656 states and 862 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 05:46:49,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:49,120 INFO L93 Difference]: Finished difference Result 857 states and 1160 transitions. [2024-11-09 05:46:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:46:49,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 87 [2024-11-09 05:46:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:49,123 INFO L225 Difference]: With dead ends: 857 [2024-11-09 05:46:49,123 INFO L226 Difference]: Without dead ends: 854 [2024-11-09 05:46:49,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:46:49,124 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 134 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:49,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 287 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:46:49,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-09 05:46:49,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 653. [2024-11-09 05:46:49,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 529 states have (on average 1.2570888468809074) internal successors, (665), 550 states have internal predecessors, (665), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-09 05:46:49,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 845 transitions. [2024-11-09 05:46:49,199 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 845 transitions. Word has length 87 [2024-11-09 05:46:49,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:49,200 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 845 transitions. [2024-11-09 05:46:49,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 05:46:49,200 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 845 transitions. [2024-11-09 05:46:49,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 05:46:49,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:49,201 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:46:49,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 05:46:49,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 05:46:49,408 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:46:49,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:49,408 INFO L85 PathProgramCache]: Analyzing trace with hash -495808988, now seen corresponding path program 1 times [2024-11-09 05:46:49,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:49,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623152739] [2024-11-09 05:46:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:49,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:46:49,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [355686467] [2024-11-09 05:46:49,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:49,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:46:49,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:46:49,436 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:46:49,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:46:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:49,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:46:49,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:46:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:46:49,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:46:50,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:46:50,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623152739] [2024-11-09 05:46:50,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:46:50,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355686467] [2024-11-09 05:46:50,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355686467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:46:50,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1049330857] [2024-11-09 05:46:50,281 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:46:50,281 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:46:50,281 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:46:50,281 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:46:50,282 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:47:28,500 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:47:28,501 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:47:36,361 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31020#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~q~0#1_96| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_71| 2147483647) (= |ULTIMATE.start_main_~b~0#1| (* |v_ULTIMATE.start_main_~y~0#1_71| |ULTIMATE.start_main_~a~0#1|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_71|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_96| |v_ULTIMATE.start_main_~y~0#1_71|)) (<= |v_ULTIMATE.start_main_~q~0#1_96| 9223372036854775807))) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~r~0#1| 4611686018427387902) (<= ~counter~0 20) (<= 0 (+ 4611686018427387903 |ULTIMATE.start_main_~r~0#1|)) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-09 05:47:36,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:47:36,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:47:36,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:47:36,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550761976] [2024-11-09 05:47:36,362 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:47:36,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:47:36,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:36,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:47:36,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=1646, Unknown=1, NotChecked=0, Total=1980 [2024-11-09 05:47:36,363 INFO L87 Difference]: Start difference. First operand 653 states and 845 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 05:47:36,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:36,862 INFO L93 Difference]: Finished difference Result 827 states and 1085 transitions. [2024-11-09 05:47:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:47:36,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 88 [2024-11-09 05:47:36,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:36,866 INFO L225 Difference]: With dead ends: 827 [2024-11-09 05:47:36,867 INFO L226 Difference]: Without dead ends: 824 [2024-11-09 05:47:36,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 143 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=340, Invalid=1729, Unknown=1, NotChecked=0, Total=2070 [2024-11-09 05:47:36,868 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 126 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:36,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 241 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:47:36,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-11-09 05:47:36,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 785. [2024-11-09 05:47:36,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 639 states have (on average 1.2644757433489828) internal successors, (808), 661 states have internal predecessors, (808), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-09 05:47:36,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1032 transitions. [2024-11-09 05:47:36,954 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1032 transitions. Word has length 88 [2024-11-09 05:47:36,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:36,954 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 1032 transitions. [2024-11-09 05:47:36,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-09 05:47:36,955 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1032 transitions. [2024-11-09 05:47:36,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 05:47:36,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:36,956 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:36,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 05:47:37,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:37,157 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:47:37,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:37,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1809790619, now seen corresponding path program 1 times [2024-11-09 05:47:37,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:37,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584306912] [2024-11-09 05:47:37,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:37,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:37,285 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:47:37,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:37,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584306912] [2024-11-09 05:47:37,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584306912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:37,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:37,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:47:37,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905574882] [2024-11-09 05:47:37,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:37,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:47:37,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:37,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:47:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:47:37,288 INFO L87 Difference]: Start difference. First operand 785 states and 1032 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:47:38,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:38,104 INFO L93 Difference]: Finished difference Result 788 states and 1033 transitions. [2024-11-09 05:47:38,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:47:38,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 89 [2024-11-09 05:47:38,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:38,107 INFO L225 Difference]: With dead ends: 788 [2024-11-09 05:47:38,107 INFO L226 Difference]: Without dead ends: 785 [2024-11-09 05:47:38,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:47:38,108 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 103 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:38,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 171 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:47:38,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2024-11-09 05:47:38,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 782. [2024-11-09 05:47:38,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 639 states have (on average 1.2284820031298904) internal successors, (785), 658 states have internal predecessors, (785), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-09 05:47:38,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1009 transitions. [2024-11-09 05:47:38,205 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1009 transitions. Word has length 89 [2024-11-09 05:47:38,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:38,206 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1009 transitions. [2024-11-09 05:47:38,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:47:38,206 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1009 transitions. [2024-11-09 05:47:38,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 05:47:38,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:38,207 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:38,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 05:47:38,208 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:47:38,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:38,208 INFO L85 PathProgramCache]: Analyzing trace with hash 268934406, now seen corresponding path program 1 times [2024-11-09 05:47:38,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:38,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795614084] [2024-11-09 05:47:38,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:38,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:47:38,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626719089] [2024-11-09 05:47:38,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:38,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:47:38,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:38,232 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:47:38,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 05:47:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:38,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:47:38,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:47:38,835 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:47:38,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:47:39,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:39,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795614084] [2024-11-09 05:47:39,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:47:39,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626719089] [2024-11-09 05:47:39,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626719089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:47:39,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [186643573] [2024-11-09 05:47:39,244 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:47:39,244 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:47:39,244 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:47:39,245 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:47:39,245 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:48:17,727 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:48:17,728 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:48:24,807 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35478#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~q~0#1_114| Int) (|v_ULTIMATE.start_main_~y~0#1_72| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_72| 2147483647) (<= 4611686018427387906 (* |v_ULTIMATE.start_main_~q~0#1_114| |v_ULTIMATE.start_main_~y~0#1_72|)) (= (* |v_ULTIMATE.start_main_~y~0#1_72| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~b~0#1|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_72|) (<= (* |v_ULTIMATE.start_main_~q~0#1_114| |v_ULTIMATE.start_main_~y~0#1_72|) 9223372036854775807))) (<= ~counter~0 20) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-09 05:48:24,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:48:24,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:48:24,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 05:48:24,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81693089] [2024-11-09 05:48:24,807 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:48:24,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:48:24,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:24,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:48:24,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=2062, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 05:48:24,809 INFO L87 Difference]: Start difference. First operand 782 states and 1009 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:48:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:25,432 INFO L93 Difference]: Finished difference Result 806 states and 1028 transitions. [2024-11-09 05:48:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:48:25,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 90 [2024-11-09 05:48:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:25,434 INFO L225 Difference]: With dead ends: 806 [2024-11-09 05:48:25,434 INFO L226 Difference]: Without dead ends: 799 [2024-11-09 05:48:25,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 197 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=388, Invalid=2062, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 05:48:25,436 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 76 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:25,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 303 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:48:25,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-09 05:48:25,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 780. [2024-11-09 05:48:25,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 637 states have (on average 1.218210361067504) internal successors, (776), 656 states have internal predecessors, (776), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-09 05:48:25,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1000 transitions. [2024-11-09 05:48:25,552 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1000 transitions. Word has length 90 [2024-11-09 05:48:25,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:25,552 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1000 transitions. [2024-11-09 05:48:25,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 05:48:25,553 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1000 transitions. [2024-11-09 05:48:25,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 05:48:25,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:25,554 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:25,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 05:48:25,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:25,755 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:48:25,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:25,755 INFO L85 PathProgramCache]: Analyzing trace with hash 679388618, now seen corresponding path program 2 times [2024-11-09 05:48:25,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:25,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11987326] [2024-11-09 05:48:25,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:25,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:48:25,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132418822] [2024-11-09 05:48:25,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:48:25,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:25,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:25,789 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:25,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 05:48:25,849 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:48:25,849 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:48:25,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:48:25,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:26,185 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-09 05:48:26,185 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:48:26,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:26,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11987326] [2024-11-09 05:48:26,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:48:26,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132418822] [2024-11-09 05:48:26,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132418822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:26,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2024791077] [2024-11-09 05:48:26,717 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 05:48:26,717 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:48:26,718 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:48:26,718 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:48:26,718 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:48:29,696 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:48:29,696 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:48:37,593 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37766#(exists ((|v_ULTIMATE.start_main_~y~0#1_75| Int) (|v_ULTIMATE.start_main_~a~0#1_161| Int)) (and (exists ((|v_ULTIMATE.start_main_#t~post7#1_126| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_~r~0#1|) (<= |v_ULTIMATE.start_main_#t~post7#1_126| 19) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |v_ULTIMATE.start_main_~y~0#1_75| 1073741823) (<= 0 (+ 4611686018427387903 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= 2 |v_ULTIMATE.start_main_#t~post7#1_126|) (<= (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 1) 0) (<= 1 |v_ULTIMATE.start_main_~y~0#1_75|) (= ~counter~0 (+ |v_ULTIMATE.start_main_#t~post7#1_126| 1)) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_161| |v_ULTIMATE.start_main_~y~0#1_75|))))' at error location [2024-11-09 05:48:37,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:48:37,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:48:37,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:48:37,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48424570] [2024-11-09 05:48:37,594 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:48:37,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:48:37,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:37,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:48:37,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:48:37,594 INFO L87 Difference]: Start difference. First operand 780 states and 1000 transitions. Second operand has 7 states, 5 states have (on average 9.6) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:48:38,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:38,508 INFO L93 Difference]: Finished difference Result 1070 states and 1401 transitions. [2024-11-09 05:48:38,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:48:38,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.6) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2024-11-09 05:48:38,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:38,512 INFO L225 Difference]: With dead ends: 1070 [2024-11-09 05:48:38,512 INFO L226 Difference]: Without dead ends: 1068 [2024-11-09 05:48:38,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 133 SyntacticMatches, 33 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=152, Invalid=604, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:48:38,513 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 124 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:38,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 283 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:48:38,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-09 05:48:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 788. [2024-11-09 05:48:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 645 states have (on average 1.2124031007751939) internal successors, (782), 664 states have internal predecessors, (782), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-09 05:48:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1006 transitions. [2024-11-09 05:48:38,619 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1006 transitions. Word has length 90 [2024-11-09 05:48:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:38,620 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 1006 transitions. [2024-11-09 05:48:38,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.6) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:48:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1006 transitions. [2024-11-09 05:48:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 05:48:38,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:38,621 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:48:38,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 05:48:38,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:38,823 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:48:38,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:38,824 INFO L85 PathProgramCache]: Analyzing trace with hash 56943242, now seen corresponding path program 1 times [2024-11-09 05:48:38,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:38,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294240054] [2024-11-09 05:48:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:38,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:48:39,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:39,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294240054] [2024-11-09 05:48:39,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294240054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:39,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423593462] [2024-11-09 05:48:39,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:39,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:39,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:39,020 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:39,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 05:48:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:39,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:48:39,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:48:39,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:48:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:48:39,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423593462] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:48:39,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [98596146] [2024-11-09 05:48:39,379 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:48:39,380 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:48:39,380 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:48:39,380 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:48:39,380 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:48:42,359 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:48:42,360 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:48:50,361 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40623#(and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (div |ULTIMATE.start_main_~b~0#1| 2) 4611686018427387903) (<= 2 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= 21 ~counter~0) (<= |ULTIMATE.start_main_~y~0#1| 1073741823) (<= ~counter~0 2147483647) (<= 1 (div |ULTIMATE.start_main_~b~0#1| 2)) (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) 2147483647) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0))' at error location [2024-11-09 05:48:50,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:48:50,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:48:50,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-09 05:48:50,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463137956] [2024-11-09 05:48:50,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:48:50,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 05:48:50,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:50,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 05:48:50,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1427, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 05:48:50,364 INFO L87 Difference]: Start difference. First operand 788 states and 1006 transitions. Second operand has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-09 05:48:51,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:51,001 INFO L93 Difference]: Finished difference Result 1159 states and 1453 transitions. [2024-11-09 05:48:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 05:48:51,002 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 92 [2024-11-09 05:48:51,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:51,004 INFO L225 Difference]: With dead ends: 1159 [2024-11-09 05:48:51,004 INFO L226 Difference]: Without dead ends: 948 [2024-11-09 05:48:51,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 212 SyntacticMatches, 34 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2091 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=461, Invalid=2845, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 05:48:51,006 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 201 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:51,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 732 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:48:51,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-09 05:48:51,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 905. [2024-11-09 05:48:51,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 741 states have (on average 1.1889338731443995) internal successors, (881), 761 states have internal predecessors, (881), 128 states have call successors, (128), 21 states have call predecessors, (128), 21 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-09 05:48:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1137 transitions. [2024-11-09 05:48:51,101 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1137 transitions. Word has length 92 [2024-11-09 05:48:51,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:51,102 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1137 transitions. [2024-11-09 05:48:51,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-09 05:48:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1137 transitions. [2024-11-09 05:48:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 05:48:51,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:51,103 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:51,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 05:48:51,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 05:48:51,308 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:48:51,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:51,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1465152392, now seen corresponding path program 1 times [2024-11-09 05:48:51,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:51,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762697974] [2024-11-09 05:48:51,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:51,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:51,481 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-09 05:48:51,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:51,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762697974] [2024-11-09 05:48:51,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762697974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:51,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:51,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:48:51,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518618992] [2024-11-09 05:48:51,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:51,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:48:51,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:51,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:48:51,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:48:51,484 INFO L87 Difference]: Start difference. First operand 905 states and 1137 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:48:52,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:52,079 INFO L93 Difference]: Finished difference Result 908 states and 1140 transitions. [2024-11-09 05:48:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:48:52,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2024-11-09 05:48:52,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:52,084 INFO L225 Difference]: With dead ends: 908 [2024-11-09 05:48:52,084 INFO L226 Difference]: Without dead ends: 906 [2024-11-09 05:48:52,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:48:52,085 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:52,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 55 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:48:52,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-09 05:48:52,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2024-11-09 05:48:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 743 states have (on average 1.1695827725437415) internal successors, (869), 762 states have internal predecessors, (869), 128 states have call successors, (128), 21 states have call predecessors, (128), 21 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-09 05:48:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1125 transitions. [2024-11-09 05:48:52,202 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1125 transitions. Word has length 105 [2024-11-09 05:48:52,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:52,202 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1125 transitions. [2024-11-09 05:48:52,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:48:52,203 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1125 transitions. [2024-11-09 05:48:52,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 05:48:52,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:52,205 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:48:52,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-09 05:48:52,206 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:48:52,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:52,206 INFO L85 PathProgramCache]: Analyzing trace with hash -737821334, now seen corresponding path program 1 times [2024-11-09 05:48:52,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:52,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070770876] [2024-11-09 05:48:52,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:52,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:52,253 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-09 05:48:52,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:52,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070770876] [2024-11-09 05:48:52,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070770876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:52,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:52,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:48:52,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905935610] [2024-11-09 05:48:52,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:52,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:48:52,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:52,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:48:52,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:48:52,256 INFO L87 Difference]: Start difference. First operand 906 states and 1125 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:48:52,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:52,565 INFO L93 Difference]: Finished difference Result 909 states and 1127 transitions. [2024-11-09 05:48:52,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:48:52,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2024-11-09 05:48:52,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:52,569 INFO L225 Difference]: With dead ends: 909 [2024-11-09 05:48:52,570 INFO L226 Difference]: Without dead ends: 903 [2024-11-09 05:48:52,570 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 05:48:52,571 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:52,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 56 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:48:52,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-09 05:48:52,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 780. [2024-11-09 05:48:52,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 639 states have (on average 1.1408450704225352) internal successors, (729), 656 states have internal predecessors, (729), 107 states have call successors, (107), 21 states have call predecessors, (107), 21 states have return successors, (107), 102 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-09 05:48:52,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 943 transitions. [2024-11-09 05:48:52,665 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 943 transitions. Word has length 107 [2024-11-09 05:48:52,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:52,666 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 943 transitions. [2024-11-09 05:48:52,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:48:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 943 transitions. [2024-11-09 05:48:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 05:48:52,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:52,668 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:52,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-09 05:48:52,668 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:48:52,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:52,669 INFO L85 PathProgramCache]: Analyzing trace with hash -786666370, now seen corresponding path program 1 times [2024-11-09 05:48:52,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:52,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438368484] [2024-11-09 05:48:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:52,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-09 05:48:52,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:52,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438368484] [2024-11-09 05:48:52,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438368484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:52,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377361238] [2024-11-09 05:48:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:52,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:52,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:52,841 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:52,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 05:48:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:52,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:48:52,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:52,999 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 05:48:52,999 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:48:53,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377361238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:53,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:48:53,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-09 05:48:53,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35969714] [2024-11-09 05:48:53,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:53,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:48:53,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:48:53,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:48:53,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:48:53,002 INFO L87 Difference]: Start difference. First operand 780 states and 943 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 05:48:53,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:53,670 INFO L93 Difference]: Finished difference Result 1312 states and 1629 transitions. [2024-11-09 05:48:53,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:48:53,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 120 [2024-11-09 05:48:53,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:53,673 INFO L225 Difference]: With dead ends: 1312 [2024-11-09 05:48:53,674 INFO L226 Difference]: Without dead ends: 800 [2024-11-09 05:48:53,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:48:53,675 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 41 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:53,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 124 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:48:53,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-09 05:48:53,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 725. [2024-11-09 05:48:53,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 599 states have (on average 1.1585976627712855) internal successors, (694), 614 states have internal predecessors, (694), 96 states have call successors, (96), 17 states have call predecessors, (96), 17 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-09 05:48:53,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 886 transitions. [2024-11-09 05:48:53,786 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 886 transitions. Word has length 120 [2024-11-09 05:48:53,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:53,786 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 886 transitions. [2024-11-09 05:48:53,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 05:48:53,786 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 886 transitions. [2024-11-09 05:48:53,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 05:48:53,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:53,788 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:53,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-09 05:48:53,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 05:48:53,989 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:48:53,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:53,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2055313164, now seen corresponding path program 2 times [2024-11-09 05:48:53,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:48:53,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111385715] [2024-11-09 05:48:53,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:53,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:48:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-09 05:48:54,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:48:54,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111385715] [2024-11-09 05:48:54,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111385715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:54,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584710296] [2024-11-09 05:48:54,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:48:54,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:48:54,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:48:54,148 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:48:54,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 05:48:54,226 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:48:54,226 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:48:54,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 05:48:54,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 05:48:54,625 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:48:54,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584710296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:48:54,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [46244302] [2024-11-09 05:48:54,956 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:48:54,956 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:48:54,957 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:48:54,957 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:48:54,957 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:49:30,142 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:49:30,143 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:49:35,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [46244302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:49:35,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:49:35,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [6, 7] total 47 [2024-11-09 05:49:35,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814503998] [2024-11-09 05:49:35,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:49:35,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-09 05:49:35,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:49:35,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-09 05:49:35,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=2315, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 05:49:35,729 INFO L87 Difference]: Start difference. First operand 725 states and 886 transitions. Second operand has 37 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 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 05:49:41,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:41,006 INFO L93 Difference]: Finished difference Result 825 states and 983 transitions. [2024-11-09 05:49:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 05:49:41,007 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 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) Word has length 120 [2024-11-09 05:49:41,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:41,009 INFO L225 Difference]: With dead ends: 825 [2024-11-09 05:49:41,010 INFO L226 Difference]: Without dead ends: 787 [2024-11-09 05:49:41,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 233 SyntacticMatches, 12 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1355, Invalid=5287, Unknown=0, NotChecked=0, Total=6642 [2024-11-09 05:49:41,011 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 267 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:41,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 143 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 05:49:41,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-11-09 05:49:41,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 702. [2024-11-09 05:49:41,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 574 states have (on average 1.1236933797909407) internal successors, (645), 589 states have internal predecessors, (645), 92 states have call successors, (92), 23 states have call predecessors, (92), 23 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-09 05:49:41,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 829 transitions. [2024-11-09 05:49:41,137 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 829 transitions. Word has length 120 [2024-11-09 05:49:41,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:41,138 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 829 transitions. [2024-11-09 05:49:41,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 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 05:49:41,138 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 829 transitions. [2024-11-09 05:49:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-09 05:49:41,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:41,140 INFO L215 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:41,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-09 05:49:41,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 05:49:41,345 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:49:41,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:41,345 INFO L85 PathProgramCache]: Analyzing trace with hash 2114452671, now seen corresponding path program 1 times [2024-11-09 05:49:41,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:49:41,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757265561] [2024-11-09 05:49:41,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:41,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:49:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:41,725 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 2 proven. 152 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-09 05:49:41,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:49:41,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757265561] [2024-11-09 05:49:41,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757265561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:49:41,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991677412] [2024-11-09 05:49:41,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:41,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:49:41,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:49:41,729 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:49:41,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 05:49:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:41,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:49:41,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:49:42,071 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 2 proven. 448 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 05:49:42,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:49:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 2 proven. 152 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-09 05:49:42,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991677412] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:49:42,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [781268897] [2024-11-09 05:49:42,502 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:49:42,502 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:49:42,503 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:49:42,503 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:49:42,503 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:50:11,915 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:50:11,916 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:50:16,750 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53955#(exists ((|v_ULTIMATE.start_main_~r~0#1_148| Int) (|v_ULTIMATE.start_main_~b~0#1_194| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= ~counter~0 2147483647) (<= (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_194|) |v_ULTIMATE.start_main_~r~0#1_148|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-09 05:50:16,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:50:16,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:50:16,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 16] total 33 [2024-11-09 05:50:16,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832602241] [2024-11-09 05:50:16,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:50:16,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 05:50:16,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:16,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 05:50:16,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=4283, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 05:50:16,753 INFO L87 Difference]: Start difference. First operand 702 states and 829 transitions. Second operand has 33 states, 33 states have (on average 6.909090909090909) internal successors, (228), 33 states have internal predecessors, (228), 12 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 12 states have call predecessors, (57), 12 states have call successors, (57) [2024-11-09 05:50:17,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:17,812 INFO L93 Difference]: Finished difference Result 1412 states and 1673 transitions. [2024-11-09 05:50:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-09 05:50:17,812 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 6.909090909090909) internal successors, (228), 33 states have internal predecessors, (228), 12 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 12 states have call predecessors, (57), 12 states have call successors, (57) Word has length 166 [2024-11-09 05:50:17,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:17,817 INFO L225 Difference]: With dead ends: 1412 [2024-11-09 05:50:17,817 INFO L226 Difference]: Without dead ends: 1173 [2024-11-09 05:50:17,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 431 SyntacticMatches, 14 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5123 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1306, Invalid=9406, Unknown=0, NotChecked=0, Total=10712 [2024-11-09 05:50:17,822 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 247 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:17,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 706 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:50:17,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2024-11-09 05:50:17,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1018. [2024-11-09 05:50:17,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 834 states have (on average 1.0971223021582734) internal successors, (915), 849 states have internal predecessors, (915), 136 states have call successors, (136), 35 states have call predecessors, (136), 35 states have return successors, (136), 133 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-09 05:50:17,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1187 transitions. [2024-11-09 05:50:17,970 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1187 transitions. Word has length 166 [2024-11-09 05:50:17,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:17,970 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1187 transitions. [2024-11-09 05:50:17,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.909090909090909) internal successors, (228), 33 states have internal predecessors, (228), 12 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 12 states have call predecessors, (57), 12 states have call successors, (57) [2024-11-09 05:50:17,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1187 transitions. [2024-11-09 05:50:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-09 05:50:17,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:17,973 INFO L215 NwaCegarLoop]: trace histogram [24, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 05:50:18,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 05:50:18,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 05:50:18,174 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:50:18,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:18,174 INFO L85 PathProgramCache]: Analyzing trace with hash -341157749, now seen corresponding path program 2 times [2024-11-09 05:50:18,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:50:18,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363749163] [2024-11-09 05:50:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:18,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:50:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:18,451 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 102 proven. 148 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-11-09 05:50:18,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:50:18,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363749163] [2024-11-09 05:50:18,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363749163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:50:18,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881357925] [2024-11-09 05:50:18,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:50:18,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:50:18,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:50:18,454 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:50:18,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 05:50:18,551 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:50:18,552 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:50:18,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:50:18,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:50:19,191 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 120 proven. 102 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2024-11-09 05:50:19,191 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:50:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2024-11-09 05:50:19,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881357925] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:50:19,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [81081369] [2024-11-09 05:50:19,632 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:50:19,632 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:50:19,633 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:50:19,633 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:50:19,633 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:50:49,621 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:50:49,622 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:50:56,585 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '58354#(exists ((|v_ULTIMATE.start_main_~r~0#1_166| Int) (|v_ULTIMATE.start_main_~b~0#1_219| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_219|) |v_ULTIMATE.start_main_~r~0#1_166|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-09 05:50:56,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:50:56,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:50:56,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-09 05:50:56,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341271967] [2024-11-09 05:50:56,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:50:56,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 05:50:56,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:50:56,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 05:50:56,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=3166, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 05:50:56,588 INFO L87 Difference]: Start difference. First operand 1018 states and 1187 transitions. Second operand has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 16 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 16 states have call predecessors, (60), 16 states have call successors, (60) [2024-11-09 05:51:01,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:51:01,609 INFO L93 Difference]: Finished difference Result 3105 states and 3814 transitions. [2024-11-09 05:51:01,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-09 05:51:01,609 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 16 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 16 states have call predecessors, (60), 16 states have call successors, (60) Word has length 209 [2024-11-09 05:51:01,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:51:01,617 INFO L225 Difference]: With dead ends: 3105 [2024-11-09 05:51:01,618 INFO L226 Difference]: Without dead ends: 2628 [2024-11-09 05:51:01,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 561 SyntacticMatches, 15 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5787 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=2254, Invalid=12508, Unknown=0, NotChecked=0, Total=14762 [2024-11-09 05:51:01,623 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 2170 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:51:01,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 1818 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 05:51:01,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2024-11-09 05:51:01,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2049. [2024-11-09 05:51:01,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1710 states have (on average 1.1251461988304094) internal successors, (1924), 1730 states have internal predecessors, (1924), 291 states have call successors, (291), 35 states have call predecessors, (291), 35 states have return successors, (291), 283 states have call predecessors, (291), 291 states have call successors, (291) [2024-11-09 05:51:01,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2506 transitions. [2024-11-09 05:51:01,928 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2506 transitions. Word has length 209 [2024-11-09 05:51:01,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:51:01,929 INFO L471 AbstractCegarLoop]: Abstraction has 2049 states and 2506 transitions. [2024-11-09 05:51:01,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 16 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 16 states have call predecessors, (60), 16 states have call successors, (60) [2024-11-09 05:51:01,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2506 transitions. [2024-11-09 05:51:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-09 05:51:01,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:51:01,934 INFO L215 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2024-11-09 05:51:01,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 05:51:02,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:51:02,138 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:51:02,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:51:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1874799958, now seen corresponding path program 1 times [2024-11-09 05:51:02,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:51:02,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882633602] [2024-11-09 05:51:02,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:51:02,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:51:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:51:02,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2024-11-09 05:51:02,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:51:02,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882633602] [2024-11-09 05:51:02,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882633602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:51:02,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861476475] [2024-11-09 05:51:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:51:02,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:51:02,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:51:02,551 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:51:02,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 05:51:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:51:02,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:51:02,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:51:02,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 622 proven. 48 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2024-11-09 05:51:02,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:51:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 230 proven. 48 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2024-11-09 05:51:03,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861476475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:51:03,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1886478469] [2024-11-09 05:51:03,161 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:51:03,162 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:51:03,162 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:51:03,162 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:51:03,162 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:51:31,848 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:51:31,849 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:51:38,696 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '66247#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~q~0#1_180| Int) (|v_ULTIMATE.start_main_~a~0#1_261| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_261| |v_ULTIMATE.start_main_~q~0#1_180|))) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 05:51:38,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:51:38,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:51:38,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 18 [2024-11-09 05:51:38,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006549568] [2024-11-09 05:51:38,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:51:38,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 05:51:38,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:51:38,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 05:51:38,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=2616, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 05:51:38,701 INFO L87 Difference]: Start difference. First operand 2049 states and 2506 transitions. Second operand has 18 states, 18 states have (on average 15.444444444444445) internal successors, (278), 18 states have internal predecessors, (278), 15 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-09 05:51:40,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:51:40,675 INFO L93 Difference]: Finished difference Result 2725 states and 3326 transitions. [2024-11-09 05:51:40,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 05:51:40,676 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.444444444444445) internal successors, (278), 18 states have internal predecessors, (278), 15 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) Word has length 244 [2024-11-09 05:51:40,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:51:40,683 INFO L225 Difference]: With dead ends: 2725 [2024-11-09 05:51:40,683 INFO L226 Difference]: Without dead ends: 1764 [2024-11-09 05:51:40,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 668 SyntacticMatches, 23 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2912 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=606, Invalid=5400, Unknown=0, NotChecked=0, Total=6006 [2024-11-09 05:51:40,688 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 370 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:51:40,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 874 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:51:40,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-09 05:51:40,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1422. [2024-11-09 05:51:40,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1177 states have (on average 1.112999150382328) internal successors, (1310), 1194 states have internal predecessors, (1310), 197 states have call successors, (197), 35 states have call predecessors, (197), 35 states have return successors, (197), 192 states have call predecessors, (197), 197 states have call successors, (197) [2024-11-09 05:51:40,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1704 transitions. [2024-11-09 05:51:40,981 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1704 transitions. Word has length 244 [2024-11-09 05:51:40,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:51:40,981 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 1704 transitions. [2024-11-09 05:51:40,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.444444444444445) internal successors, (278), 18 states have internal predecessors, (278), 15 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-09 05:51:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1704 transitions. [2024-11-09 05:51:40,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-09 05:51:40,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:51:40,985 INFO L215 NwaCegarLoop]: trace histogram [31, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 05:51:41,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-09 05:51:41,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:51:41,186 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:51:41,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:51:41,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1204054052, now seen corresponding path program 2 times [2024-11-09 05:51:41,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:51:41,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109798865] [2024-11-09 05:51:41,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:51:41,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:51:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:51:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 0 proven. 516 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-11-09 05:51:41,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:51:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109798865] [2024-11-09 05:51:41,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109798865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:51:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100078436] [2024-11-09 05:51:41,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:51:41,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:51:41,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:51:41,713 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:51:41,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 05:51:41,802 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:51:41,802 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:51:41,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:51:41,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:51:45,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 59 proven. 190 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2024-11-09 05:51:45,930 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:51:46,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100078436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:51:46,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2569635] [2024-11-09 05:51:46,453 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:51:46,453 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:51:46,454 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:51:46,454 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:51:46,454 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:52:16,324 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:52:16,325 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:53:31,411 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '72281#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~q~0#1_195| Int) (|v_ULTIMATE.start_main_~a~0#1_284| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_284| |v_ULTIMATE.start_main_~q~0#1_195|))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 05:53:31,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:53:31,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:53:31,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2024-11-09 05:53:31,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952774836] [2024-11-09 05:53:31,412 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:53:31,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 05:53:31,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:31,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 05:53:31,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=3225, Unknown=2, NotChecked=0, Total=3660 [2024-11-09 05:53:31,415 INFO L87 Difference]: Start difference. First operand 1422 states and 1704 transitions. Second operand has 21 states, 19 states have (on average 13.421052631578947) internal successors, (255), 21 states have internal predecessors, (255), 12 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) [2024-11-09 05:53:33,425 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 05:53:35,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:53:38,002 WARN L539 Checker$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 05:53:40,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:53:42,294 WARN L539 Checker$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 05:53:44,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:53:45,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:53:52,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:53:54,867 WARN L539 Checker$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 05:53:56,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:53:58,926 WARN L539 Checker$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 05:54:00,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:03,414 WARN L539 Checker$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 05:54:07,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:09,547 WARN L539 Checker$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 05:54:11,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:13,999 WARN L539 Checker$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 05:54:17,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:20,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:22,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:31,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:33,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:35,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:38,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:41,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:43,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:45,393 WARN L539 Checker$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 05:54:48,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:54:56,274 WARN L539 Checker$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 05:55:02,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:55:04,267 WARN L539 Checker$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 05:55:10,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:55:14,288 WARN L539 Checker$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 05:55:16,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:55:18,359 WARN L539 Checker$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 05:55:20,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:55:28,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:55:34,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:55:39,221 WARN L539 Checker$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 05:55:41,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:55:43,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:55:46,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:55:53,589 WARN L539 Checker$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 05:55:59,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:02,672 WARN L539 Checker$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 05:56:04,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:07,389 WARN L539 Checker$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 05:56:10,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:13,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:15,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:17,780 WARN L539 Checker$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 05:56:19,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:21,802 WARN L539 Checker$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 05:56:26,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:28,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:31,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:33,513 WARN L539 Checker$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 05:56:35,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:39,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:41,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:43,977 WARN L539 Checker$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 05:56:46,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:56:48,102 WARN L539 Checker$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 05:56:50,192 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 05:56:50,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:56:50,300 INFO L93 Difference]: Finished difference Result 1748 states and 2091 transitions. [2024-11-09 05:56:50,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-09 05:56:50,301 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 13.421052631578947) internal successors, (255), 21 states have internal predecessors, (255), 12 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) Word has length 267 [2024-11-09 05:56:50,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:56:50,309 INFO L225 Difference]: With dead ends: 1748 [2024-11-09 05:56:50,310 INFO L226 Difference]: Without dead ends: 1747 [2024-11-09 05:56:50,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 472 SyntacticMatches, 26 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5729 ImplicationChecksByTransitivity, 132.5s TimeCoverageRelationStatistics Valid=1352, Invalid=10406, Unknown=14, NotChecked=0, Total=11772 [2024-11-09 05:56:50,314 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 472 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 87 mSolverCounterUnsat, 57 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 144.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 57 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 144.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:56:50,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 571 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1076 Invalid, 57 Unknown, 0 Unchecked, 144.4s Time] [2024-11-09 05:56:50,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2024-11-09 05:56:50,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1585. [2024-11-09 05:56:50,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1320 states have (on average 1.1106060606060606) internal successors, (1466), 1337 states have internal predecessors, (1466), 217 states have call successors, (217), 35 states have call predecessors, (217), 35 states have return successors, (217), 212 states have call predecessors, (217), 217 states have call successors, (217) [2024-11-09 05:56:50,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 1900 transitions. [2024-11-09 05:56:50,710 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 1900 transitions. Word has length 267 [2024-11-09 05:56:50,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:56:50,711 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 1900 transitions. [2024-11-09 05:56:50,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 13.421052631578947) internal successors, (255), 21 states have internal predecessors, (255), 12 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) [2024-11-09 05:56:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 1900 transitions. [2024-11-09 05:56:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-09 05:56:50,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:56:50,715 INFO L215 NwaCegarLoop]: trace histogram [31, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 05:56:50,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-09 05:56:50,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:56:50,919 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:56:50,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:56:50,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1457034165, now seen corresponding path program 1 times [2024-11-09 05:56:50,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:56:50,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052695319] [2024-11-09 05:56:50,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:50,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:56:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:51,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1454 backedges. 12 proven. 512 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-11-09 05:56:51,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:56:51,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052695319] [2024-11-09 05:56:51,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052695319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:56:51,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501925998] [2024-11-09 05:56:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:51,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:56:51,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:56:51,838 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:56:51,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 05:56:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:51,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:56:51,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:56:52,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1454 backedges. 12 proven. 1360 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 05:56:52,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:56:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1454 backedges. 12 proven. 512 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-11-09 05:56:53,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501925998] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:56:53,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1087330308] [2024-11-09 05:56:53,284 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 05:56:53,284 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:56:53,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:56:53,285 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:56:53,285 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:57:27,529 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:57:27,531 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:57:35,878 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '78172#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~y~0#1_80| Int) (|v_ULTIMATE.start_main_~q~0#1_211| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_211| |v_ULTIMATE.start_main_~y~0#1_80|)) (<= |v_ULTIMATE.start_main_~q~0#1_211| 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~y~0#1_80|) (<= |v_ULTIMATE.start_main_~y~0#1_80| 2147483647))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 05:57:35,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:57:35,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:57:35,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 22] total 45 [2024-11-09 05:57:35,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505190006] [2024-11-09 05:57:35,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:57:35,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-09 05:57:35,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:57:35,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-09 05:57:35,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=777, Invalid=6195, Unknown=0, NotChecked=0, Total=6972 [2024-11-09 05:57:35,882 INFO L87 Difference]: Start difference. First operand 1585 states and 1900 transitions. Second operand has 45 states, 45 states have (on average 8.11111111111111) internal successors, (365), 45 states have internal predecessors, (365), 18 states have call successors, (93), 10 states have call predecessors, (93), 10 states have return successors, (93), 18 states have call predecessors, (93), 18 states have call successors, (93) [2024-11-09 05:57:38,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:57:38,298 INFO L93 Difference]: Finished difference Result 2833 states and 3409 transitions. [2024-11-09 05:57:38,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-09 05:57:38,299 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 8.11111111111111) internal successors, (365), 45 states have internal predecessors, (365), 18 states have call successors, (93), 10 states have call predecessors, (93), 10 states have return successors, (93), 18 states have call predecessors, (93), 18 states have call successors, (93) Word has length 273 [2024-11-09 05:57:38,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:57:38,307 INFO L225 Difference]: With dead ends: 2833 [2024-11-09 05:57:38,308 INFO L226 Difference]: Without dead ends: 2214 [2024-11-09 05:57:38,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 732 SyntacticMatches, 26 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8954 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=2392, Invalid=15430, Unknown=0, NotChecked=0, Total=17822 [2024-11-09 05:57:38,312 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 434 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:57:38,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1155 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:57:38,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-09 05:57:38,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1756. [2024-11-09 05:57:38,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1452 states have (on average 1.1026170798898072) internal successors, (1601), 1469 states have internal predecessors, (1601), 245 states have call successors, (245), 46 states have call predecessors, (245), 46 states have return successors, (245), 240 states have call predecessors, (245), 245 states have call successors, (245) [2024-11-09 05:57:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2091 transitions. [2024-11-09 05:57:38,635 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2091 transitions. Word has length 273 [2024-11-09 05:57:38,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:57:38,636 INFO L471 AbstractCegarLoop]: Abstraction has 1756 states and 2091 transitions. [2024-11-09 05:57:38,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 8.11111111111111) internal successors, (365), 45 states have internal predecessors, (365), 18 states have call successors, (93), 10 states have call predecessors, (93), 10 states have return successors, (93), 18 states have call predecessors, (93), 18 states have call successors, (93) [2024-11-09 05:57:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2091 transitions. [2024-11-09 05:57:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-09 05:57:38,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:57:38,639 INFO L215 NwaCegarLoop]: trace histogram [34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:57:38,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 05:57:38,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:57:38,839 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:57:38,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:57:38,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1090991439, now seen corresponding path program 1 times [2024-11-09 05:57:38,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:57:38,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392555648] [2024-11-09 05:57:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:38,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:57:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:39,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 259 proven. 150 refuted. 0 times theorem prover too weak. 1302 trivial. 0 not checked. [2024-11-09 05:57:39,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:57:39,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392555648] [2024-11-09 05:57:39,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392555648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:57:39,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331952744] [2024-11-09 05:57:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:39,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:57:39,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:57:39,092 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:57:39,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 05:57:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:39,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:57:39,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:57:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 857 proven. 187 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2024-11-09 05:57:39,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:57:40,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 329 proven. 187 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2024-11-09 05:57:40,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331952744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:57:40,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1864369597] [2024-11-09 05:57:40,217 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:57:40,217 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:57:40,217 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:57:40,218 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:57:40,218 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:58:19,611 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-09 05:58:19,612 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:58:30,428 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '85650#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_318| Int)) (and (or (< ~counter~0 21) (and (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= 0 (+ 9223372036854775808 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |v_ULTIMATE.start_main_~b~0#1_318|))) (<= 4611686018427387904 |v_ULTIMATE.start_main_~b~0#1_318|))) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-09 05:58:30,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:58:30,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:58:30,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 16 [2024-11-09 05:58:30,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781204580] [2024-11-09 05:58:30,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:58:30,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 05:58:30,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:30,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 05:58:30,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=2327, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 05:58:30,430 INFO L87 Difference]: Start difference. First operand 1756 states and 2091 transitions. Second operand has 16 states, 16 states have (on average 15.5) internal successors, (248), 16 states have internal predecessors, (248), 13 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 13 states have call predecessors, (49), 13 states have call successors, (49) [2024-11-09 05:58:36,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:36,180 INFO L93 Difference]: Finished difference Result 3962 states and 4853 transitions. [2024-11-09 05:58:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-09 05:58:36,181 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.5) internal successors, (248), 16 states have internal predecessors, (248), 13 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 13 states have call predecessors, (49), 13 states have call successors, (49) Word has length 280 [2024-11-09 05:58:36,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:36,196 INFO L225 Difference]: With dead ends: 3962 [2024-11-09 05:58:36,196 INFO L226 Difference]: Without dead ends: 2959 [2024-11-09 05:58:36,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 915 GetRequests, 780 SyntacticMatches, 33 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4013 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=1075, Invalid=9637, Unknown=0, NotChecked=0, Total=10712 [2024-11-09 05:58:36,201 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 961 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 2433 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 2433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:36,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 1422 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 2433 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 05:58:36,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2024-11-09 05:58:36,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2017. [2024-11-09 05:58:36,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1675 states have (on average 1.1038805970149255) internal successors, (1849), 1692 states have internal predecessors, (1849), 284 states have call successors, (284), 45 states have call predecessors, (284), 45 states have return successors, (284), 279 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-09 05:58:36,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2417 transitions. [2024-11-09 05:58:36,533 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2417 transitions. Word has length 280 [2024-11-09 05:58:36,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:36,533 INFO L471 AbstractCegarLoop]: Abstraction has 2017 states and 2417 transitions. [2024-11-09 05:58:36,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.5) internal successors, (248), 16 states have internal predecessors, (248), 13 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 13 states have call predecessors, (49), 13 states have call successors, (49) [2024-11-09 05:58:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2417 transitions. [2024-11-09 05:58:36,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-09 05:58:36,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:36,537 INFO L215 NwaCegarLoop]: trace histogram [41, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1] [2024-11-09 05:58:36,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-09 05:58:36,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-09 05:58:36,741 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 05:58:36,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:36,741 INFO L85 PathProgramCache]: Analyzing trace with hash 682846258, now seen corresponding path program 3 times [2024-11-09 05:58:36,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:36,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739595911] [2024-11-09 05:58:36,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:36,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2489 backedges. 0 proven. 849 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2024-11-09 05:58:37,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:37,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739595911] [2024-11-09 05:58:37,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739595911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:58:37,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622249492] [2024-11-09 05:58:37,503 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:58:37,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:37,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:37,505 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:37,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12089137-35e3-476d-bbb8-f168448580d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 05:58:37,641 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:58:37,641 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:58:37,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 05:58:37,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2489 backedges. 12 proven. 2379 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-09 05:58:38,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:58:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2489 backedges. 12 proven. 837 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2024-11-09 05:58:39,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622249492] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:58:39,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1216357903] [2024-11-09 05:58:39,933 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:58:39,933 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:58:39,934 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:58:39,934 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:58:39,934 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs