./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.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_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/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_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/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_e8f904e3-7ae7-4d59-a147-4ba4be72b433/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 5bfe5681b6d73d5859a119345279b9da165675f4eb4d814fdf24f92881f7a27f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:48:21,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:48:21,416 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 04:48:21,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:48:21,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:48:21,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:48:21,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:48:21,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:48:21,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:48:21,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:48:21,462 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:48:21,463 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:48:21,463 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:48:21,463 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:48:21,464 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:48:21,464 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:48:21,468 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:48:21,469 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:48:21,469 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:48:21,469 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:48:21,470 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:48:21,471 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:48:21,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:48:21,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:48:21,472 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:48:21,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:48:21,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:48:21,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:48:21,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:48:21,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:48:21,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:48:21,475 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:48:21,475 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:48:21,476 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:48:21,477 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:48:21,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:48:21,477 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:48:21,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:48:21,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:48:21,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:48:21,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:48:21,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:48:21,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:48:21,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:48:21,480 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:48:21,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:48:21,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:48:21,481 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:48:21,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:48:21,482 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_e8f904e3-7ae7-4d59-a147-4ba4be72b433/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bfe5681b6d73d5859a119345279b9da165675f4eb4d814fdf24f92881f7a27f [2024-11-09 04:48:21,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:48:21,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:48:21,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:48:21,799 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:48:21,800 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:48:21,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c Unable to find full path for "g++" [2024-11-09 04:48:23,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:48:24,096 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:48:24,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c [2024-11-09 04:48:24,105 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/data/6b7727c0b/db2102cd30f045548ad1f44ef202193c/FLAG35575680a [2024-11-09 04:48:24,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/data/6b7727c0b/db2102cd30f045548ad1f44ef202193c [2024-11-09 04:48:24,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:48:24,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:48:24,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:48:24,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:48:24,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:48:24,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164596dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24, skipping insertion in model container [2024-11-09 04:48:24,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,159 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:48:24,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:48:24,439 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:48:24,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:48:24,501 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:48:24,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24 WrapperNode [2024-11-09 04:48:24,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:48:24,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:48:24,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:48:24,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:48:24,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,566 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 152 [2024-11-09 04:48:24,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:48:24,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:48:24,574 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:48:24,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:48:24,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:48:24,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:48:24,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:48:24,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:48:24,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (1/1) ... [2024-11-09 04:48:24,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:48:24,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:24,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:48:24,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:48:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:48:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:48:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:48:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:48:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:48:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:48:24,753 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:48:24,756 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:48:25,588 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-09 04:48:25,588 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:48:25,649 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:48:25,649 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:48:25,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:48:25 BoogieIcfgContainer [2024-11-09 04:48:25,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:48:25,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:48:25,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:48:25,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:48:25,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:48:24" (1/3) ... [2024-11-09 04:48:25,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a03c8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:48:25, skipping insertion in model container [2024-11-09 04:48:25,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:48:24" (2/3) ... [2024-11-09 04:48:25,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a03c8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:48:25, skipping insertion in model container [2024-11-09 04:48:25,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:48:25" (3/3) ... [2024-11-09 04:48:25,659 INFO L112 eAbstractionObserver]: Analyzing ICFG ps6-ll_unwindbound50.c [2024-11-09 04:48:25,679 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:48:25,679 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 104 error locations. [2024-11-09 04:48:25,750 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:48:25,758 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;@6de4a75d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:48:25,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-11-09 04:48:25,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 110 states have (on average 1.9727272727272727) internal successors, (217), 214 states have internal predecessors, (217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:48:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 04:48:25,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:25,771 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 04:48:25,771 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:25,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:25,777 INFO L85 PathProgramCache]: Analyzing trace with hash 289678, now seen corresponding path program 1 times [2024-11-09 04:48:25,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:25,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974478026] [2024-11-09 04:48:25,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:25,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:26,010 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 04:48:26,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:26,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974478026] [2024-11-09 04:48:26,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974478026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:26,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:26,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:48:26,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421834524] [2024-11-09 04:48:26,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:26,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:48:26,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:26,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:48:26,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:48:26,049 INFO L87 Difference]: Start difference. First operand has 219 states, 110 states have (on average 1.9727272727272727) internal successors, (217), 214 states have internal predecessors, (217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 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 04:48:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:26,150 INFO L93 Difference]: Finished difference Result 305 states and 321 transitions. [2024-11-09 04:48:26,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:48:26,153 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 04:48:26,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:26,163 INFO L225 Difference]: With dead ends: 305 [2024-11-09 04:48:26,163 INFO L226 Difference]: Without dead ends: 190 [2024-11-09 04:48:26,167 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 04:48:26,174 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 196 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:26,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 374 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:48:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-09 04:48:26,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-09 04:48:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.724770642201835) internal successors, (188), 186 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:48:26,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 192 transitions. [2024-11-09 04:48:26,241 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 192 transitions. Word has length 3 [2024-11-09 04:48:26,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:26,243 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 192 transitions. [2024-11-09 04:48:26,243 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 04:48:26,243 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 192 transitions. [2024-11-09 04:48:26,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 04:48:26,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:26,244 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 04:48:26,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:48:26,245 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:26,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:26,247 INFO L85 PathProgramCache]: Analyzing trace with hash 8980065, now seen corresponding path program 1 times [2024-11-09 04:48:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:26,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394513012] [2024-11-09 04:48:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:26,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:26,337 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 04:48:26,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:26,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394513012] [2024-11-09 04:48:26,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394513012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:26,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:26,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:48:26,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642349841] [2024-11-09 04:48:26,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:26,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:48:26,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:26,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:48:26,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:48:26,341 INFO L87 Difference]: Start difference. First operand 190 states and 192 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:48:26,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:26,393 INFO L93 Difference]: Finished difference Result 278 states and 280 transitions. [2024-11-09 04:48:26,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:48:26,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 04:48:26,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:26,396 INFO L225 Difference]: With dead ends: 278 [2024-11-09 04:48:26,396 INFO L226 Difference]: Without dead ends: 194 [2024-11-09 04:48:26,396 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 04:48:26,398 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 3 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:26,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 557 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:48:26,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-09 04:48:26,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-09 04:48:26,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 113 states have (on average 1.6991150442477876) internal successors, (192), 190 states have internal predecessors, (192), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:48:26,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 196 transitions. [2024-11-09 04:48:26,413 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 196 transitions. Word has length 4 [2024-11-09 04:48:26,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:26,413 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 196 transitions. [2024-11-09 04:48:26,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:48:26,414 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 196 transitions. [2024-11-09 04:48:26,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 04:48:26,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:26,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 04:48:26,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:48:26,414 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:26,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:26,415 INFO L85 PathProgramCache]: Analyzing trace with hash 39909539, now seen corresponding path program 1 times [2024-11-09 04:48:26,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:26,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721223748] [2024-11-09 04:48:26,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:26,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:26,464 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 04:48:26,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:26,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721223748] [2024-11-09 04:48:26,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721223748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:26,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:26,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:48:26,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433201977] [2024-11-09 04:48:26,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:26,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:48:26,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:26,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:48:26,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:48:26,467 INFO L87 Difference]: Start difference. First operand 194 states and 196 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 04:48:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:27,052 INFO L93 Difference]: Finished difference Result 354 states and 362 transitions. [2024-11-09 04:48:27,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:48:27,053 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 04:48:27,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:27,055 INFO L225 Difference]: With dead ends: 354 [2024-11-09 04:48:27,055 INFO L226 Difference]: Without dead ends: 290 [2024-11-09 04:48:27,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 04:48:27,057 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 98 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:27,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 125 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 04:48:27,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-09 04:48:27,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 284. [2024-11-09 04:48:27,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 202 states have (on average 1.4405940594059405) internal successors, (291), 279 states have internal predecessors, (291), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:48:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 297 transitions. [2024-11-09 04:48:27,082 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 297 transitions. Word has length 6 [2024-11-09 04:48:27,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:27,082 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 297 transitions. [2024-11-09 04:48:27,083 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 04:48:27,083 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 297 transitions. [2024-11-09 04:48:27,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 04:48:27,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:27,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:48:27,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:48:27,086 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:27,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:27,087 INFO L85 PathProgramCache]: Analyzing trace with hash 613483401, now seen corresponding path program 1 times [2024-11-09 04:48:27,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:27,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145598450] [2024-11-09 04:48:27,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:27,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:27,265 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 04:48:27,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:27,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145598450] [2024-11-09 04:48:27,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145598450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:27,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:27,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:48:27,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363230922] [2024-11-09 04:48:27,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:27,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:48:27,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:48:27,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:48:27,269 INFO L87 Difference]: Start difference. First operand 284 states and 297 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 04:48:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:27,362 INFO L93 Difference]: Finished difference Result 308 states and 315 transitions. [2024-11-09 04:48:27,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:48:27,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2024-11-09 04:48:27,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:27,364 INFO L225 Difference]: With dead ends: 308 [2024-11-09 04:48:27,364 INFO L226 Difference]: Without dead ends: 301 [2024-11-09 04:48:27,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 04:48:27,366 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 68 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:27,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 347 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:48:27,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-09 04:48:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 283. [2024-11-09 04:48:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 201 states have (on average 1.4129353233830846) internal successors, (284), 278 states have internal predecessors, (284), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:48:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 290 transitions. [2024-11-09 04:48:27,384 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 290 transitions. Word has length 44 [2024-11-09 04:48:27,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:27,384 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 290 transitions. [2024-11-09 04:48:27,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 04:48:27,385 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 290 transitions. [2024-11-09 04:48:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 04:48:27,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:27,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:48:27,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:48:27,387 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:27,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:27,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1147033035, now seen corresponding path program 1 times [2024-11-09 04:48:27,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:27,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617340278] [2024-11-09 04:48:27,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:27,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:27,555 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 04:48:27,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:27,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617340278] [2024-11-09 04:48:27,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617340278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:27,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:27,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:48:27,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937472786] [2024-11-09 04:48:27,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:27,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:48:27,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:27,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:48:27,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:48:27,561 INFO L87 Difference]: Start difference. First operand 283 states and 290 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 04:48:28,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:28,318 INFO L93 Difference]: Finished difference Result 303 states and 308 transitions. [2024-11-09 04:48:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:48:28,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2024-11-09 04:48:28,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:28,320 INFO L225 Difference]: With dead ends: 303 [2024-11-09 04:48:28,320 INFO L226 Difference]: Without dead ends: 260 [2024-11-09 04:48:28,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:48:28,321 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 105 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:28,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 288 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:48:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-09 04:48:28,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 242. [2024-11-09 04:48:28,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 160 states have (on average 1.50625) internal successors, (241), 237 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:48:28,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 247 transitions. [2024-11-09 04:48:28,354 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 247 transitions. Word has length 46 [2024-11-09 04:48:28,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:28,354 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 247 transitions. [2024-11-09 04:48:28,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 04:48:28,355 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 247 transitions. [2024-11-09 04:48:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 04:48:28,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:28,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:48:28,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:48:28,358 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:28,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1650195189, now seen corresponding path program 1 times [2024-11-09 04:48:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:28,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772913924] [2024-11-09 04:48:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:28,457 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 04:48:28,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:28,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772913924] [2024-11-09 04:48:28,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772913924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:28,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:28,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:48:28,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410488437] [2024-11-09 04:48:28,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:28,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:48:28,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:28,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:48:28,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:48:28,463 INFO L87 Difference]: Start difference. First operand 242 states and 247 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 04:48:28,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:28,494 INFO L93 Difference]: Finished difference Result 244 states and 247 transitions. [2024-11-09 04:48:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:48:28,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 52 [2024-11-09 04:48:28,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:28,497 INFO L225 Difference]: With dead ends: 244 [2024-11-09 04:48:28,497 INFO L226 Difference]: Without dead ends: 242 [2024-11-09 04:48:28,498 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 04:48:28,498 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:28,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 371 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:48:28,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-09 04:48:28,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-09 04:48:28,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 160 states have (on average 1.49375) internal successors, (239), 237 states have internal predecessors, (239), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:48:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 245 transitions. [2024-11-09 04:48:28,514 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 245 transitions. Word has length 52 [2024-11-09 04:48:28,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:28,515 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 245 transitions. [2024-11-09 04:48:28,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 04:48:28,516 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 245 transitions. [2024-11-09 04:48:28,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 04:48:28,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:28,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:28,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:48:28,518 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:28,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:28,518 INFO L85 PathProgramCache]: Analyzing trace with hash 611486401, now seen corresponding path program 1 times [2024-11-09 04:48:28,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:28,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635665429] [2024-11-09 04:48:28,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:28,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:48:28,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229987172] [2024-11-09 04:48:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:28,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:28,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:28,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:48:28,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:48:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:28,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:48:28,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:28,869 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 04:48:28,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:48:28,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:28,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635665429] [2024-11-09 04:48:28,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:48:28,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229987172] [2024-11-09 04:48:28,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229987172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:28,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:28,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:48:28,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57309539] [2024-11-09 04:48:28,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:28,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:48:28,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:28,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:48:28,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:48:28,874 INFO L87 Difference]: Start difference. First operand 242 states and 245 transitions. Second operand has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 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 04:48:29,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:29,469 INFO L93 Difference]: Finished difference Result 421 states and 435 transitions. [2024-11-09 04:48:29,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:48:29,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 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 57 [2024-11-09 04:48:29,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:29,472 INFO L225 Difference]: With dead ends: 421 [2024-11-09 04:48:29,472 INFO L226 Difference]: Without dead ends: 356 [2024-11-09 04:48:29,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:48:29,474 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 113 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:29,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 145 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 04:48:29,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-09 04:48:29,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 349. [2024-11-09 04:48:29,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 265 states have (on average 1.3584905660377358) internal successors, (360), 342 states have internal predecessors, (360), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:48:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 370 transitions. [2024-11-09 04:48:29,487 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 370 transitions. Word has length 57 [2024-11-09 04:48:29,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:29,487 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 370 transitions. [2024-11-09 04:48:29,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 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 04:48:29,488 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 370 transitions. [2024-11-09 04:48:29,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 04:48:29,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:29,489 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:29,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:48:29,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:29,693 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:29,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:29,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1564846337, now seen corresponding path program 1 times [2024-11-09 04:48:29,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:29,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872511385] [2024-11-09 04:48:29,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:29,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:29,865 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 04:48:29,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:29,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872511385] [2024-11-09 04:48:29,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872511385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:29,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:29,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:48:29,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057239014] [2024-11-09 04:48:29,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:29,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:48:29,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:29,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:48:29,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:48:29,871 INFO L87 Difference]: Start difference. First operand 349 states and 370 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 04:48:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:30,309 INFO L93 Difference]: Finished difference Result 350 states and 370 transitions. [2024-11-09 04:48:30,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:48:30,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 64 [2024-11-09 04:48:30,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:30,313 INFO L225 Difference]: With dead ends: 350 [2024-11-09 04:48:30,313 INFO L226 Difference]: Without dead ends: 349 [2024-11-09 04:48:30,314 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 04:48:30,315 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 57 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:30,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 321 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:48:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-09 04:48:30,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-09 04:48:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 265 states have (on average 1.3547169811320754) internal successors, (359), 342 states have internal predecessors, (359), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:48:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 369 transitions. [2024-11-09 04:48:30,335 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 369 transitions. Word has length 64 [2024-11-09 04:48:30,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:30,336 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 369 transitions. [2024-11-09 04:48:30,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 04:48:30,337 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 369 transitions. [2024-11-09 04:48:30,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:48:30,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:30,338 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:30,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 04:48:30,339 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:30,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:30,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1265596361, now seen corresponding path program 1 times [2024-11-09 04:48:30,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:30,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917101199] [2024-11-09 04:48:30,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:30,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:30,512 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 04:48:30,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:30,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917101199] [2024-11-09 04:48:30,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917101199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:30,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:48:30,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:48:30,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388546207] [2024-11-09 04:48:30,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:30,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:48:30,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:48:30,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:48:30,519 INFO L87 Difference]: Start difference. First operand 349 states and 369 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 04:48:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:30,635 INFO L93 Difference]: Finished difference Result 350 states and 369 transitions. [2024-11-09 04:48:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:48:30,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 65 [2024-11-09 04:48:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:30,638 INFO L225 Difference]: With dead ends: 350 [2024-11-09 04:48:30,638 INFO L226 Difference]: Without dead ends: 349 [2024-11-09 04:48:30,638 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 04:48:30,639 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 50 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 314 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 04:48:30,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 314 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:48:30,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-09 04:48:30,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-09 04:48:30,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 265 states have (on average 1.350943396226415) internal successors, (358), 342 states have internal predecessors, (358), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:48:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 368 transitions. [2024-11-09 04:48:30,652 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 368 transitions. Word has length 65 [2024-11-09 04:48:30,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:30,653 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 368 transitions. [2024-11-09 04:48:30,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 04:48:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 368 transitions. [2024-11-09 04:48:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 04:48:30,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:30,654 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:30,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 04:48:30,655 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:30,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:30,655 INFO L85 PathProgramCache]: Analyzing trace with hash -2136658268, now seen corresponding path program 1 times [2024-11-09 04:48:30,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:30,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597422222] [2024-11-09 04:48:30,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:30,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:48:30,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:30,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597422222] [2024-11-09 04:48:30,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597422222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:48:30,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358728989] [2024-11-09 04:48:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:30,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:30,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:30,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:48:30,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:48:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:30,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:48:30,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:48:30,990 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:48:30,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358728989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:30,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:48:30,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 04:48:30,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129407693] [2024-11-09 04:48:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:30,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:48:30,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:30,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:48:30,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:48:30,992 INFO L87 Difference]: Start difference. First operand 349 states and 368 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 04:48:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:48:31,059 INFO L93 Difference]: Finished difference Result 477 states and 501 transitions. [2024-11-09 04:48:31,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:48:31,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 68 [2024-11-09 04:48:31,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:48:31,062 INFO L225 Difference]: With dead ends: 477 [2024-11-09 04:48:31,062 INFO L226 Difference]: Without dead ends: 476 [2024-11-09 04:48:31,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:48:31,063 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 129 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:48:31,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 872 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:48:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-09 04:48:31,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 436. [2024-11-09 04:48:31,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 350 states have (on average 1.36) internal successors, (476), 428 states have internal predecessors, (476), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 04:48:31,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 490 transitions. [2024-11-09 04:48:31,079 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 490 transitions. Word has length 68 [2024-11-09 04:48:31,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:48:31,080 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 490 transitions. [2024-11-09 04:48:31,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 04:48:31,080 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 490 transitions. [2024-11-09 04:48:31,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 04:48:31,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:48:31,082 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:48:31,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:48:31,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 04:48:31,283 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr96ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:48:31,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:48:31,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1708167129, now seen corresponding path program 1 times [2024-11-09 04:48:31,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:48:31,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246642308] [2024-11-09 04:48:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:31,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:48:31,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:31,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246642308] [2024-11-09 04:48:31,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246642308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:48:31,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864473299] [2024-11-09 04:48:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:31,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:31,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:31,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:48:31,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:48:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:31,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:48:31,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:48:31,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:48:31,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:48:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:48:31,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864473299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:48:31,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1267968193] [2024-11-09 04:48:31,897 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2024-11-09 04:48:31,898 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:48:31,902 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:48:31,908 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:48:31,909 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:48:38,014 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-09 04:48:38,051 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:48:57,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1267968193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:48:57,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:48:57,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6, 5, 6] total 32 [2024-11-09 04:48:57,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363397059] [2024-11-09 04:48:57,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:48:57,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 04:48:57,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:48:57,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 04:48:57,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=846, Unknown=1, NotChecked=0, Total=992 [2024-11-09 04:48:57,337 INFO L87 Difference]: Start difference. First operand 436 states and 490 transitions. Second operand has 24 states, 22 states have (on average 4.681818181818182) internal successors, (103), 21 states have internal predecessors, (103), 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 04:49:04,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:49:04,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:49:04,262 INFO L93 Difference]: Finished difference Result 478 states and 501 transitions. [2024-11-09 04:49:04,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 04:49:04,263 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.681818181818182) internal successors, (103), 21 states have internal predecessors, (103), 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 108 [2024-11-09 04:49:04,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:49:04,264 INFO L225 Difference]: With dead ends: 478 [2024-11-09 04:49:04,264 INFO L226 Difference]: Without dead ends: 332 [2024-11-09 04:49:04,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 221 SyntacticMatches, 77 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1575 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=322, Invalid=1483, Unknown=1, NotChecked=0, Total=1806 [2024-11-09 04:49:04,266 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 441 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 111 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:49:04,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 75 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1700 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-09 04:49:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-09 04:49:04,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 327. [2024-11-09 04:49:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 285 states have (on average 1.1473684210526316) internal successors, (327), 319 states have internal predecessors, (327), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:49:04,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 337 transitions. [2024-11-09 04:49:04,282 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 337 transitions. Word has length 108 [2024-11-09 04:49:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:49:04,282 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 337 transitions. [2024-11-09 04:49:04,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.681818181818182) internal successors, (103), 21 states have internal predecessors, (103), 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 04:49:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 337 transitions. [2024-11-09 04:49:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-09 04:49:04,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:49:04,285 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:49:04,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 04:49:04,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:49:04,486 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr96ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:49:04,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:49:04,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1111063263, now seen corresponding path program 1 times [2024-11-09 04:49:04,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:49:04,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639302737] [2024-11-09 04:49:04,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:49:04,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:49:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:49:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 04:49:04,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:49:04,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639302737] [2024-11-09 04:49:04,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639302737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:49:04,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:49:04,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:49:04,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607069101] [2024-11-09 04:49:04,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:49:04,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:49:04,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:49:04,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:49:04,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:49:04,597 INFO L87 Difference]: Start difference. First operand 327 states and 337 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:49:04,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:49:04,641 INFO L93 Difference]: Finished difference Result 328 states and 337 transitions. [2024-11-09 04:49:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:49:04,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 154 [2024-11-09 04:49:04,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:49:04,644 INFO L225 Difference]: With dead ends: 328 [2024-11-09 04:49:04,644 INFO L226 Difference]: Without dead ends: 327 [2024-11-09 04:49:04,645 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 04:49:04,646 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 93 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:49:04,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 203 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:49:04,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-09 04:49:04,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 326. [2024-11-09 04:49:04,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 285 states have (on average 1.1403508771929824) internal successors, (325), 318 states have internal predecessors, (325), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:49:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 335 transitions. [2024-11-09 04:49:04,663 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 335 transitions. Word has length 154 [2024-11-09 04:49:04,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:49:04,663 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 335 transitions. [2024-11-09 04:49:04,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:49:04,664 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 335 transitions. [2024-11-09 04:49:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-09 04:49:04,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:49:04,668 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:49:04,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 04:49:04,670 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr97ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:49:04,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:49:04,670 INFO L85 PathProgramCache]: Analyzing trace with hash 83223038, now seen corresponding path program 1 times [2024-11-09 04:49:04,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:49:04,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620302612] [2024-11-09 04:49:04,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:49:04,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:49:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:49:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 04:49:04,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:49:04,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620302612] [2024-11-09 04:49:04,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620302612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:49:04,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:49:04,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:49:04,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400680296] [2024-11-09 04:49:04,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:49:04,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:49:04,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:49:04,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:49:04,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:49:04,770 INFO L87 Difference]: Start difference. First operand 326 states and 335 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:49:04,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:49:04,808 INFO L93 Difference]: Finished difference Result 327 states and 335 transitions. [2024-11-09 04:49:04,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:49:04,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 155 [2024-11-09 04:49:04,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:49:04,811 INFO L225 Difference]: With dead ends: 327 [2024-11-09 04:49:04,811 INFO L226 Difference]: Without dead ends: 325 [2024-11-09 04:49:04,811 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 04:49:04,812 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 93 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:49:04,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 203 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:49:04,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-09 04:49:04,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 324. [2024-11-09 04:49:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 285 states have (on average 1.1263157894736842) internal successors, (321), 316 states have internal predecessors, (321), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 04:49:04,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 331 transitions. [2024-11-09 04:49:04,830 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 331 transitions. Word has length 155 [2024-11-09 04:49:04,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:49:04,831 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 331 transitions. [2024-11-09 04:49:04,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:49:04,831 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 331 transitions. [2024-11-09 04:49:04,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 04:49:04,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:49:04,834 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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 04:49:04,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 04:49:04,836 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:49:04,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:49:04,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1017436250, now seen corresponding path program 1 times [2024-11-09 04:49:04,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:49:04,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833474845] [2024-11-09 04:49:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:49:04,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:49:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:49:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:49:05,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:49:05,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833474845] [2024-11-09 04:49:05,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833474845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:49:05,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134429840] [2024-11-09 04:49:05,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:49:05,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:49:05,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:49:05,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:49:05,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:49:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:49:05,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:49:05,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:49:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:49:05,450 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:49:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:49:05,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134429840] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:49:05,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2035067338] [2024-11-09 04:49:05,734 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-09 04:49:05,734 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:49:05,735 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:49:05,735 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:49:05,735 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:49:09,967 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-09 04:49:09,986 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:49:35,548 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10959#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_228| Int)) (and (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) (* (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 3))) (= (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|)) (+ (* 5 (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|)) (* (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 2) (* (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 6))) (<= (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 4611686018427387904))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 04:49:35,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:49:35,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:49:35,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2024-11-09 04:49:35,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84415470] [2024-11-09 04:49:35,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:49:35,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 04:49:35,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:49:35,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 04:49:35,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=979, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 04:49:35,551 INFO L87 Difference]: Start difference. First operand 324 states and 331 transitions. Second operand has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 04:49:36,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:49:36,000 INFO L93 Difference]: Finished difference Result 810 states and 814 transitions. [2024-11-09 04:49:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 04:49:36,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 156 [2024-11-09 04:49:36,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:49:36,005 INFO L225 Difference]: With dead ends: 810 [2024-11-09 04:49:36,005 INFO L226 Difference]: Without dead ends: 786 [2024-11-09 04:49:36,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 333 SyntacticMatches, 109 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3245 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=297, Invalid=1683, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 04:49:36,007 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 503 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:49:36,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1158 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:49:36,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-09 04:49:36,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 540. [2024-11-09 04:49:36,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 492 states have (on average 1.0853658536585367) internal successors, (534), 523 states have internal predecessors, (534), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 04:49:36,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 550 transitions. [2024-11-09 04:49:36,047 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 550 transitions. Word has length 156 [2024-11-09 04:49:36,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:49:36,048 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 550 transitions. [2024-11-09 04:49:36,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 04:49:36,048 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 550 transitions. [2024-11-09 04:49:36,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 04:49:36,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:49:36,052 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-11-09 04:49:36,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 04:49:36,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 04:49:36,256 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:49:36,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:49:36,257 INFO L85 PathProgramCache]: Analyzing trace with hash -850634753, now seen corresponding path program 1 times [2024-11-09 04:49:36,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:49:36,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060139525] [2024-11-09 04:49:36,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:49:36,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:49:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:49:36,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28980483] [2024-11-09 04:49:36,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:49:36,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:49:36,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:49:36,299 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:49:36,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 04:49:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:49:36,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:49:36,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:49:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:49:36,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:49:37,225 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:49:37,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:49:37,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060139525] [2024-11-09 04:49:37,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:49:37,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28980483] [2024-11-09 04:49:37,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28980483] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:49:37,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1915426330] [2024-11-09 04:49:37,229 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-09 04:49:37,229 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:49:37,229 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:49:37,229 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:49:37,229 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:49:40,049 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-09 04:49:40,067 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:50:08,803 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13360#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_237| Int)) (and (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|) (* 3 (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|)))) (<= (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|) 4611686018427387904))) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 04:50:08,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:50:08,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:50:08,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-09 04:50:08,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681484584] [2024-11-09 04:50:08,804 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 04:50:08,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:50:08,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:08,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:50:08,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2024-11-09 04:50:08,806 INFO L87 Difference]: Start difference. First operand 540 states and 550 transitions. Second operand has 8 states, 7 states have (on average 43.0) internal successors, (301), 8 states have internal predecessors, (301), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:50:12,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:50:14,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:50:16,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:50:16,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:16,340 INFO L93 Difference]: Finished difference Result 706 states and 808 transitions. [2024-11-09 04:50:16,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:50:16,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 43.0) internal successors, (301), 8 states have internal predecessors, (301), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 156 [2024-11-09 04:50:16,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:16,345 INFO L225 Difference]: With dead ends: 706 [2024-11-09 04:50:16,345 INFO L226 Difference]: Without dead ends: 669 [2024-11-09 04:50:16,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 336 SyntacticMatches, 105 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1709 ImplicationChecksByTransitivity, 28.8s TimeCoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2024-11-09 04:50:16,347 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 676 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 126 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:16,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 158 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2024-11-09 04:50:16,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-09 04:50:16,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 487. [2024-11-09 04:50:16,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 468 states have (on average 1.0192307692307692) internal successors, (477), 472 states have internal predecessors, (477), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 04:50:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 491 transitions. [2024-11-09 04:50:16,383 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 491 transitions. Word has length 156 [2024-11-09 04:50:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:16,383 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 491 transitions. [2024-11-09 04:50:16,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 43.0) internal successors, (301), 8 states have internal predecessors, (301), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 04:50:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 491 transitions. [2024-11-09 04:50:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 04:50:16,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:16,386 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:16,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 04:50:16,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 04:50:16,591 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr98ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:50:16,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:16,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1715052863, now seen corresponding path program 1 times [2024-11-09 04:50:16,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:16,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535593659] [2024-11-09 04:50:16,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:16,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-09 04:50:16,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:16,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535593659] [2024-11-09 04:50:16,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535593659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:16,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:16,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:50:16,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772462802] [2024-11-09 04:50:16,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:16,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:50:16,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:16,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:50:16,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:50:16,704 INFO L87 Difference]: Start difference. First operand 487 states and 491 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:50:17,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:17,098 INFO L93 Difference]: Finished difference Result 487 states and 491 transitions. [2024-11-09 04:50:17,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:50:17,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 156 [2024-11-09 04:50:17,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:17,101 INFO L225 Difference]: With dead ends: 487 [2024-11-09 04:50:17,101 INFO L226 Difference]: Without dead ends: 486 [2024-11-09 04:50:17,102 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 04:50:17,102 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 51 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:17,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 32 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:50:17,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-09 04:50:17,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2024-11-09 04:50:17,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 468 states have (on average 1.017094017094017) internal successors, (476), 471 states have internal predecessors, (476), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 04:50:17,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 490 transitions. [2024-11-09 04:50:17,132 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 490 transitions. Word has length 156 [2024-11-09 04:50:17,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:17,132 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 490 transitions. [2024-11-09 04:50:17,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:50:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 490 transitions. [2024-11-09 04:50:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-09 04:50:17,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:17,134 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:17,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 04:50:17,135 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:50:17,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1367853872, now seen corresponding path program 1 times [2024-11-09 04:50:17,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:17,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022392707] [2024-11-09 04:50:17,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:17,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:50:17,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499285079] [2024-11-09 04:50:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:17,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:50:17,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:50:17,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:50:17,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 04:50:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:17,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:50:17,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 04:50:17,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:50:18,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:18,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022392707] [2024-11-09 04:50:18,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:50:18,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499285079] [2024-11-09 04:50:18,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499285079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:50:18,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1945179066] [2024-11-09 04:50:18,186 INFO L159 IcfgInterpreter]: Started Sifa with 110 locations of interest [2024-11-09 04:50:18,187 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:50:18,187 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:50:18,187 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:50:18,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:50:21,424 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 126 for LOIs [2024-11-09 04:50:21,469 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:50:33,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1945179066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:33,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:50:33,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [4] total 22 [2024-11-09 04:50:33,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263612659] [2024-11-09 04:50:33,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:33,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 04:50:33,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 04:50:33,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-11-09 04:50:33,334 INFO L87 Difference]: Start difference. First operand 486 states and 490 transitions. Second operand has 20 states, 18 states have (on average 5.944444444444445) internal successors, (107), 17 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:50:46,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:46,905 INFO L93 Difference]: Finished difference Result 486 states and 490 transitions. [2024-11-09 04:50:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 04:50:46,906 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.944444444444445) internal successors, (107), 17 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 161 [2024-11-09 04:50:46,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:46,907 INFO L225 Difference]: With dead ends: 486 [2024-11-09 04:50:46,907 INFO L226 Difference]: Without dead ends: 437 [2024-11-09 04:50:46,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 327 SyntacticMatches, 82 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1450 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=386, Invalid=1092, Unknown=4, NotChecked=0, Total=1482 [2024-11-09 04:50:46,908 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 404 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:46,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 3 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 04:50:46,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-09 04:50:46,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2024-11-09 04:50:46,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 423 states have (on average 1.0047281323877069) internal successors, (425), 424 states have internal predecessors, (425), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 04:50:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 437 transitions. [2024-11-09 04:50:46,939 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 437 transitions. Word has length 161 [2024-11-09 04:50:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:46,940 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 437 transitions. [2024-11-09 04:50:46,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.944444444444445) internal successors, (107), 17 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:50:46,940 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 437 transitions. [2024-11-09 04:50:46,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-09 04:50:46,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:46,947 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 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 04:50:46,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 04:50:47,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 04:50:47,149 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:50:47,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:47,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1120126310, now seen corresponding path program 2 times [2024-11-09 04:50:47,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:47,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645290043] [2024-11-09 04:50:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:47,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 04:50:48,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:48,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645290043] [2024-11-09 04:50:48,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645290043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:50:48,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852261288] [2024-11-09 04:50:48,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:50:48,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:50:48,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:50:48,101 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:50:48,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 04:50:48,449 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 04:50:48,450 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:50:48,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 04:50:48,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:48,986 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 0 proven. 984 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:50:48,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:50:49,768 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 04:50:49,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852261288] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:50:49,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1078097123] [2024-11-09 04:50:49,771 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-09 04:50:49,771 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:50:49,772 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:50:49,772 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:50:49,772 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:50:53,146 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-09 04:50:53,174 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:51:42,340 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20010#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (exists ((|v_ULTIMATE.start_main_~y~0#1_255| Int)) (and (= (+ (* 5 (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|)) (* (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|) 2) (* 6 (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|))) (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|))) (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|) (* 3 (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|)))) (<= (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|) 4611686018427387904))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 04:51:42,340 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:51:42,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:51:42,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 16] total 30 [2024-11-09 04:51:42,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125390023] [2024-11-09 04:51:42,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:51:42,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 04:51:42,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:51:42,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 04:51:42,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=2216, Unknown=1, NotChecked=0, Total=2550 [2024-11-09 04:51:42,345 INFO L87 Difference]: Start difference. First operand 437 states and 437 transitions. Second operand has 30 states, 30 states have (on average 25.733333333333334) internal successors, (772), 30 states have internal predecessors, (772), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-11-09 04:51:43,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:51:43,441 INFO L93 Difference]: Finished difference Result 957 states and 964 transitions. [2024-11-09 04:51:43,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 04:51:43,442 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 25.733333333333334) internal successors, (772), 30 states have internal predecessors, (772), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) Word has length 412 [2024-11-09 04:51:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:51:43,445 INFO L225 Difference]: With dead ends: 957 [2024-11-09 04:51:43,446 INFO L226 Difference]: Without dead ends: 933 [2024-11-09 04:51:43,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1277 GetRequests, 917 SyntacticMatches, 284 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15826 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=1143, Invalid=4862, Unknown=1, NotChecked=0, Total=6006 [2024-11-09 04:51:43,449 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 163 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:51:43,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1287 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:51:43,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-09 04:51:43,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 926. [2024-11-09 04:51:43,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 896 states have (on average 1.0100446428571428) internal successors, (905), 897 states have internal predecessors, (905), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 04:51:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 933 transitions. [2024-11-09 04:51:43,515 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 933 transitions. Word has length 412 [2024-11-09 04:51:43,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:51:43,516 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 933 transitions. [2024-11-09 04:51:43,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 25.733333333333334) internal successors, (772), 30 states have internal predecessors, (772), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-11-09 04:51:43,517 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 933 transitions. [2024-11-09 04:51:43,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-09 04:51:43,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:51:43,524 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1] [2024-11-09 04:51:43,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 04:51:43,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 04:51:43,728 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:51:43,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:51:43,729 INFO L85 PathProgramCache]: Analyzing trace with hash -747944693, now seen corresponding path program 2 times [2024-11-09 04:51:43,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:51:43,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679617214] [2024-11-09 04:51:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:51:43,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:51:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:51:43,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609681732] [2024-11-09 04:51:43,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:51:43,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:51:43,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:51:43,797 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:51:43,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 04:51:44,133 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 04:51:44,133 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:51:44,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 04:51:44,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:51:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 04:51:44,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:51:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 04:51:46,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:51:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679617214] [2024-11-09 04:51:46,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:51:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609681732] [2024-11-09 04:51:46,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609681732] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:51:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1801995947] [2024-11-09 04:51:46,474 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-09 04:51:46,474 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:51:46,475 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:51:46,475 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:51:46,475 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:51:49,560 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-09 04:51:49,587 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:52:42,559 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24564#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_272| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272|) 4611686018427387904) (<= 4611686018427387905 (+ (* (* |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272|) 3) (* |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272|))))) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 04:52:42,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:52:42,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:52:42,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-09 04:52:42,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533607941] [2024-11-09 04:52:42,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 04:52:42,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:52:42,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:52:42,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:52:42,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1014, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 04:52:42,563 INFO L87 Difference]: Start difference. First operand 926 states and 933 transitions. Second operand has 16 states, 15 states have (on average 52.6) internal successors, (789), 16 states have internal predecessors, (789), 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 04:52:46,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:52:46,746 INFO L93 Difference]: Finished difference Result 950 states and 957 transitions. [2024-11-09 04:52:46,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:52:46,747 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 52.6) internal successors, (789), 16 states have internal predecessors, (789), 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) Word has length 412 [2024-11-09 04:52:46,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:52:46,751 INFO L225 Difference]: With dead ends: 950 [2024-11-09 04:52:46,751 INFO L226 Difference]: Without dead ends: 949 [2024-11-09 04:52:46,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 920 SyntacticMatches, 281 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5954 ImplicationChecksByTransitivity, 54.4s TimeCoverageRelationStatistics Valid=272, Invalid=1368, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 04:52:46,752 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 202 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 3055 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:52:46,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 594 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3055 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 04:52:46,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-09 04:52:46,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2024-11-09 04:52:46,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 919 states have (on average 1.002176278563656) internal successors, (921), 920 states have internal predecessors, (921), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 04:52:46,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 949 transitions. [2024-11-09 04:52:46,816 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 949 transitions. Word has length 412 [2024-11-09 04:52:46,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:52:46,817 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 949 transitions. [2024-11-09 04:52:46,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 52.6) internal successors, (789), 16 states have internal predecessors, (789), 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 04:52:46,818 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 949 transitions. [2024-11-09 04:52:46,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2024-11-09 04:52:46,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:52:46,853 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 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 04:52:46,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 04:52:47,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:52:47,054 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:52:47,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:52:47,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1982521474, now seen corresponding path program 3 times [2024-11-09 04:52:47,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:52:47,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992033490] [2024-11-09 04:52:47,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:52:47,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:52:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:52:50,563 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5698 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-09 04:52:50,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:52:50,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992033490] [2024-11-09 04:52:50,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992033490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:52:50,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737921881] [2024-11-09 04:52:50,564 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:52:50,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:52:50,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:52:50,566 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:52:50,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 04:52:50,827 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:52:50,827 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:52:50,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 04:52:50,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:52:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:52:51,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:52:53,837 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5698 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-09 04:52:53,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737921881] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:52:53,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [752651374] [2024-11-09 04:52:53,839 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-09 04:52:53,840 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:52:53,840 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:52:53,840 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:52:53,840 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:52:56,889 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-09 04:52:56,905 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:55:08,129 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32208#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256) (exists ((|v_ULTIMATE.start_main_~y~0#1_291| Int)) (and (= (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (+ (* 5 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (* 2 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (* 6 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)))) (<= 4611686018427387905 (+ (* 3 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|))) (<= (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|) 4611686018427387904))))' at error location [2024-11-09 04:55:08,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:55:08,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:55:08,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 32] total 62 [2024-11-09 04:55:08,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376266734] [2024-11-09 04:55:08,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:55:08,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-09 04:55:08,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:55:08,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-09 04:55:08,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1079, Invalid=5563, Unknown=0, NotChecked=0, Total=6642 [2024-11-09 04:55:08,138 INFO L87 Difference]: Start difference. First operand 949 states and 949 transitions. Second operand has 62 states, 62 states have (on average 28.322580645161292) internal successors, (1756), 62 states have internal predecessors, (1756), 28 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 28 states have call predecessors, (42), 28 states have call successors, (42) [2024-11-09 04:55:11,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:55:11,342 INFO L93 Difference]: Finished difference Result 1989 states and 2004 transitions. [2024-11-09 04:55:11,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-09 04:55:11,344 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 28.322580645161292) internal successors, (1756), 62 states have internal predecessors, (1756), 28 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 28 states have call predecessors, (42), 28 states have call successors, (42) Word has length 924 [2024-11-09 04:55:11,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:55:11,352 INFO L225 Difference]: With dead ends: 1989 [2024-11-09 04:55:11,352 INFO L226 Difference]: Without dead ends: 1965 [2024-11-09 04:55:11,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2861 GetRequests, 2085 SyntacticMatches, 637 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67623 ImplicationChecksByTransitivity, 134.5s TimeCoverageRelationStatistics Valid=4737, Invalid=15003, Unknown=0, NotChecked=0, Total=19740 [2024-11-09 04:55:11,358 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 424 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:55:11,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 2169 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:55:11,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-09 04:55:11,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1950. [2024-11-09 04:55:11,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1888 states have (on average 1.0090042372881356) internal successors, (1905), 1889 states have internal predecessors, (1905), 30 states have call successors, (30), 30 states have call predecessors, (30), 30 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 04:55:11,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 1965 transitions. [2024-11-09 04:55:11,516 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 1965 transitions. Word has length 924 [2024-11-09 04:55:11,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:55:11,518 INFO L471 AbstractCegarLoop]: Abstraction has 1950 states and 1965 transitions. [2024-11-09 04:55:11,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 28.322580645161292) internal successors, (1756), 62 states have internal predecessors, (1756), 28 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 28 states have call predecessors, (42), 28 states have call successors, (42) [2024-11-09 04:55:11,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 1965 transitions. [2024-11-09 04:55:11,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2024-11-09 04:55:11,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:55:11,529 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1] [2024-11-09 04:55:11,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 04:55:11,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:55:11,730 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:55:11,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:55:11,731 INFO L85 PathProgramCache]: Analyzing trace with hash 444374819, now seen corresponding path program 3 times [2024-11-09 04:55:11,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:55:11,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664405626] [2024-11-09 04:55:11,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:55:11,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:55:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:55:11,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1429407653] [2024-11-09 04:55:11,961 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 04:55:11,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:55:11,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:55:11,965 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:55:11,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 04:55:12,215 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 04:55:12,216 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:55:12,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 04:55:12,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:55:13,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6202 backedges. 0 proven. 6020 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-09 04:55:13,491 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:55:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 6202 backedges. 0 proven. 6020 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-09 04:55:18,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:55:18,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664405626] [2024-11-09 04:55:18,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:55:18,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429407653] [2024-11-09 04:55:18,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429407653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:55:18,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1880905302] [2024-11-09 04:55:18,333 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-09 04:55:18,333 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:55:18,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:55:18,333 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:55:18,333 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:55:21,233 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-09 04:55:21,250 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:58:03,661 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42097#(and (exists ((|v_ULTIMATE.start_main_~y~0#1_324| Int)) (and (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324|) (* (* |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324|) 3))) (<= (* |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324|) 4611686018427387904))) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 04:58:03,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:58:03,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:58:03,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2024-11-09 04:58:03,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051969938] [2024-11-09 04:58:03,662 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 04:58:03,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 04:58:03,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:58:03,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 04:58:03,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=2166, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 04:58:03,671 INFO L87 Difference]: Start difference. First operand 1950 states and 1965 transitions. Second operand has 32 states, 31 states have (on average 56.935483870967744) internal successors, (1765), 32 states have internal predecessors, (1765), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 04:58:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:58:33,919 INFO L93 Difference]: Finished difference Result 1974 states and 1989 transitions. [2024-11-09 04:58:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 04:58:33,921 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 56.935483870967744) internal successors, (1765), 32 states have internal predecessors, (1765), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 924 [2024-11-09 04:58:33,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:58:33,928 INFO L225 Difference]: With dead ends: 1974 [2024-11-09 04:58:33,928 INFO L226 Difference]: Without dead ends: 1973 [2024-11-09 04:58:33,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2784 GetRequests, 2088 SyntacticMatches, 633 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18710 ImplicationChecksByTransitivity, 184.5s TimeCoverageRelationStatistics Valid=831, Invalid=3328, Unknown=1, NotChecked=0, Total=4160 [2024-11-09 04:58:33,930 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 394 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 13030 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 13046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 13030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:58:33,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 2491 Invalid, 13046 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 13030 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-09 04:58:33,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-11-09 04:58:34,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1973. [2024-11-09 04:58:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1911 states have (on average 1.0010465724751438) internal successors, (1913), 1912 states have internal predecessors, (1913), 30 states have call successors, (30), 30 states have call predecessors, (30), 30 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 04:58:34,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 1973 transitions. [2024-11-09 04:58:34,073 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 1973 transitions. Word has length 924 [2024-11-09 04:58:34,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:58:34,075 INFO L471 AbstractCegarLoop]: Abstraction has 1973 states and 1973 transitions. [2024-11-09 04:58:34,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 56.935483870967744) internal successors, (1765), 32 states have internal predecessors, (1765), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 04:58:34,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 1973 transitions. [2024-11-09 04:58:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1949 [2024-11-09 04:58:34,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:58:34,108 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 1, 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 04:58:34,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 04:58:34,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 04:58:34,310 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-09 04:58:34,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:58:34,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1128649646, now seen corresponding path program 4 times [2024-11-09 04:58:34,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:58:34,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288096769] [2024-11-09 04:58:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:58:34,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:58:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:58:46,601 INFO L134 CoverageAnalysis]: Checked inductivity of 27960 backedges. 0 proven. 27090 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-09 04:58:46,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:58:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288096769] [2024-11-09 04:58:46,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288096769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:58:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631114011] [2024-11-09 04:58:46,602 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 04:58:46,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:58:46,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:58:46,604 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:58:46,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f904e3-7ae7-4d59-a147-4ba4be72b433/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 04:58:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:58:47,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 2342 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-09 04:58:47,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:58:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 27960 backedges. 0 proven. 27960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:58:49,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:58:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 27960 backedges. 0 proven. 27090 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-09 04:58:54,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631114011] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:58:54,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1292425605] [2024-11-09 04:58:54,129 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-09 04:58:54,130 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:58:54,130 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:58:54,130 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:58:54,130 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:58:56,901 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-09 04:58:56,918 INFO L180 IcfgInterpreter]: Interpretation finished