./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.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_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/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_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/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_f6f97625-6851-4455-b561-152b654502c0/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 879a640f466eee273c1bfb9ec38819f0b05c8e28dd65a68aba774d943b257ad3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:27:57,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:27:57,469 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:27:57,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:27:57,475 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:27:57,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:27:57,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:27:57,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:27:57,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:27:57,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:27:57,506 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:27:57,507 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:27:57,507 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:27:57,508 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:27:57,508 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:27:57,509 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:27:57,509 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:27:57,510 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:27:57,510 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:27:57,511 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:27:57,511 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:27:57,512 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:27:57,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:27:57,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:27:57,514 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:27:57,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:27:57,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:27:57,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:27:57,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:27:57,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:27:57,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:27:57,517 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:27:57,518 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:27:57,518 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:27:57,518 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:27:57,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:27:57,519 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:27:57,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:27:57,520 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:27:57,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:27:57,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:27:57,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:27:57,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:27:57,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:27:57,523 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:27:57,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:27:57,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:27:57,525 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:27:57,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:27:57,526 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_f6f97625-6851-4455-b561-152b654502c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 879a640f466eee273c1bfb9ec38819f0b05c8e28dd65a68aba774d943b257ad3 [2024-11-09 05:27:57,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:27:57,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:27:57,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:27:57,893 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:27:57,894 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:27:57,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.c Unable to find full path for "g++" [2024-11-09 05:28:00,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:28:00,376 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:28:00,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound10.c [2024-11-09 05:28:00,385 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/data/940f81e13/d544c13a0efd4c06a690f52479cd16e4/FLAGd0bdcc04e [2024-11-09 05:28:00,401 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/data/940f81e13/d544c13a0efd4c06a690f52479cd16e4 [2024-11-09 05:28:00,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:28:00,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:28:00,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:28:00,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:28:00,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:28:00,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3652f9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00, skipping insertion in model container [2024-11-09 05:28:00,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,452 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:28:00,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:28:00,699 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:28:00,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:28:00,759 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:28:00,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00 WrapperNode [2024-11-09 05:28:00,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:28:00,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:28:00,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:28:00,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:28:00,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,801 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2024-11-09 05:28:00,801 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:28:00,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:28:00,802 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:28:00,802 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:28:00,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:28:00,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:28:00,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:28:00,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:28:00,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (1/1) ... [2024-11-09 05:28:00,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:28:00,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:00,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:28:00,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:28:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:28:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:28:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:28:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:28:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:28:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:28:00,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:28:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:28:00,967 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:28:00,970 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:28:01,597 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-09 05:28:01,597 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:28:01,661 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:28:01,661 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:28:01,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:28:01 BoogieIcfgContainer [2024-11-09 05:28:01,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:28:01,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:28:01,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:28:01,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:28:01,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:28:00" (1/3) ... [2024-11-09 05:28:01,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1951f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:28:01, skipping insertion in model container [2024-11-09 05:28:01,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:28:00" (2/3) ... [2024-11-09 05:28:01,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1951f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:28:01, skipping insertion in model container [2024-11-09 05:28:01,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:28:01" (3/3) ... [2024-11-09 05:28:01,673 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound10.c [2024-11-09 05:28:01,696 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:28:01,698 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-09 05:28:01,833 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:28:01,842 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;@73a93428, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:28:01,843 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-09 05:28:01,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 53 states have (on average 1.8867924528301887) internal successors, (100), 95 states have internal predecessors, (100), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:28:01,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:28:01,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:01,860 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:01,862 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:01,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:01,872 INFO L85 PathProgramCache]: Analyzing trace with hash 764557574, now seen corresponding path program 1 times [2024-11-09 05:28:01,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:01,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240995979] [2024-11-09 05:28:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:01,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:02,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:02,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240995979] [2024-11-09 05:28:02,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240995979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:02,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:02,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:28:02,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222615882] [2024-11-09 05:28:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:02,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:28:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:02,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:28:02,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:28:02,109 INFO L87 Difference]: Start difference. First operand has 104 states, 53 states have (on average 1.8867924528301887) internal successors, (100), 95 states have internal predecessors, (100), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:28:02,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:02,152 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2024-11-09 05:28:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:28:02,158 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 14 [2024-11-09 05:28:02,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:02,166 INFO L225 Difference]: With dead ends: 118 [2024-11-09 05:28:02,166 INFO L226 Difference]: Without dead ends: 101 [2024-11-09 05:28:02,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:28:02,173 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:02,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:28:02,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-09 05:28:02,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-09 05:28:02,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 52 states have (on average 1.8653846153846154) internal successors, (97), 93 states have internal predecessors, (97), 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 05:28:02,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 107 transitions. [2024-11-09 05:28:02,224 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 107 transitions. Word has length 14 [2024-11-09 05:28:02,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:02,226 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 107 transitions. [2024-11-09 05:28:02,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:28:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 107 transitions. [2024-11-09 05:28:02,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:28:02,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:02,231 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:02,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:28:02,232 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:02,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:02,233 INFO L85 PathProgramCache]: Analyzing trace with hash 764552637, now seen corresponding path program 1 times [2024-11-09 05:28:02,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:02,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094781804] [2024-11-09 05:28:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:02,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:28:02,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909154920] [2024-11-09 05:28:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:02,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:02,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:02,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:02,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:28:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:02,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:28:02,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:28:02,564 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:28:02,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:02,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094781804] [2024-11-09 05:28:02,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:28:02,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909154920] [2024-11-09 05:28:02,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909154920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:28:02,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1446889866] [2024-11-09 05:28:02,870 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:28:02,870 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:28:02,874 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:28:02,881 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:28:02,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:28:03,620 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:28:03,625 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:28:04,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1446889866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:04,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:28:04,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 13 [2024-11-09 05:28:04,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230270810] [2024-11-09 05:28:04,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:04,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:28:04,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:04,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:28:04,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:28:04,225 INFO L87 Difference]: Start difference. First operand 101 states and 107 transitions. Second operand has 10 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 05:28:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:05,128 INFO L93 Difference]: Finished difference Result 144 states and 159 transitions. [2024-11-09 05:28:05,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:28:05,129 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-09 05:28:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:05,131 INFO L225 Difference]: With dead ends: 144 [2024-11-09 05:28:05,131 INFO L226 Difference]: Without dead ends: 119 [2024-11-09 05:28:05,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:28:05,133 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 369 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:05,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 130 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:28:05,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-09 05:28:05,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-09 05:28:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 73 states have (on average 1.6027397260273972) internal successors, (117), 110 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:28:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2024-11-09 05:28:05,152 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 14 [2024-11-09 05:28:05,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:05,153 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2024-11-09 05:28:05,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 05:28:05,153 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2024-11-09 05:28:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:28:05,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:05,154 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:05,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:28:05,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:05,356 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:05,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash -695536910, now seen corresponding path program 1 times [2024-11-09 05:28:05,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:05,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542178747] [2024-11-09 05:28:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:05,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542178747] [2024-11-09 05:28:05,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542178747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:05,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:05,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:05,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447459275] [2024-11-09 05:28:05,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:05,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:05,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:05,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:05,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:05,627 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:06,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:06,189 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2024-11-09 05:28:06,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:28:06,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2024-11-09 05:28:06,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:06,191 INFO L225 Difference]: With dead ends: 164 [2024-11-09 05:28:06,191 INFO L226 Difference]: Without dead ends: 161 [2024-11-09 05:28:06,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:28:06,193 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 167 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:06,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 106 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:28:06,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-09 05:28:06,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 147. [2024-11-09 05:28:06,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 101 states have (on average 1.6534653465346534) internal successors, (167), 137 states have internal predecessors, (167), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:28:06,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 181 transitions. [2024-11-09 05:28:06,214 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 181 transitions. Word has length 29 [2024-11-09 05:28:06,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:06,214 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 181 transitions. [2024-11-09 05:28:06,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:06,215 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 181 transitions. [2024-11-09 05:28:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:28:06,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:06,216 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:06,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:28:06,216 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:06,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:06,220 INFO L85 PathProgramCache]: Analyzing trace with hash -73416598, now seen corresponding path program 1 times [2024-11-09 05:28:06,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:06,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268373984] [2024-11-09 05:28:06,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:06,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:28:06,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989304551] [2024-11-09 05:28:06,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:06,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:06,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:06,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:06,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:28:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:06,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:28:06,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:06,500 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:28:06,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:06,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268373984] [2024-11-09 05:28:06,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:28:06,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989304551] [2024-11-09 05:28:06,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989304551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:06,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:06,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:06,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340013895] [2024-11-09 05:28:06,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:06,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:06,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:06,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:06,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:06,504 INFO L87 Difference]: Start difference. First operand 147 states and 181 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:06,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:06,900 INFO L93 Difference]: Finished difference Result 193 states and 246 transitions. [2024-11-09 05:28:06,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:28:06,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2024-11-09 05:28:06,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:06,902 INFO L225 Difference]: With dead ends: 193 [2024-11-09 05:28:06,903 INFO L226 Difference]: Without dead ends: 190 [2024-11-09 05:28:06,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:28:06,904 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:06,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 104 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:28:06,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-09 05:28:06,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 172. [2024-11-09 05:28:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 125 states have (on average 1.664) internal successors, (208), 161 states have internal predecessors, (208), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:28:06,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 224 transitions. [2024-11-09 05:28:06,931 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 224 transitions. Word has length 30 [2024-11-09 05:28:06,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:06,931 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 224 transitions. [2024-11-09 05:28:06,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:06,932 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 224 transitions. [2024-11-09 05:28:06,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:28:06,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:06,937 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:06,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:28:07,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:07,138 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:07,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:07,138 INFO L85 PathProgramCache]: Analyzing trace with hash -86807652, now seen corresponding path program 1 times [2024-11-09 05:28:07,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:07,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082421534] [2024-11-09 05:28:07,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:07,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:07,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:07,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082421534] [2024-11-09 05:28:07,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082421534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:07,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:07,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:28:07,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729717285] [2024-11-09 05:28:07,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:07,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:28:07,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:07,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:28:07,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:28:07,372 INFO L87 Difference]: Start difference. First operand 172 states and 224 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:08,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:08,242 INFO L93 Difference]: Finished difference Result 353 states and 466 transitions. [2024-11-09 05:28:08,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:28:08,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2024-11-09 05:28:08,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:08,246 INFO L225 Difference]: With dead ends: 353 [2024-11-09 05:28:08,246 INFO L226 Difference]: Without dead ends: 265 [2024-11-09 05:28:08,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:28:08,251 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 222 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:08,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 117 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:28:08,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-09 05:28:08,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 240. [2024-11-09 05:28:08,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 190 states have (on average 1.694736842105263) internal successors, (322), 226 states have internal predecessors, (322), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 05:28:08,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 344 transitions. [2024-11-09 05:28:08,293 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 344 transitions. Word has length 30 [2024-11-09 05:28:08,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:08,294 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 344 transitions. [2024-11-09 05:28:08,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 344 transitions. [2024-11-09 05:28:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:28:08,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:08,299 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:08,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:28:08,299 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:08,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:08,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2032443907, now seen corresponding path program 1 times [2024-11-09 05:28:08,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:08,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706369848] [2024-11-09 05:28:08,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:08,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:28:08,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824862300] [2024-11-09 05:28:08,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:08,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:08,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:08,338 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:08,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:28:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:08,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:28:08,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:08,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:28:08,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:08,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706369848] [2024-11-09 05:28:08,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:28:08,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824862300] [2024-11-09 05:28:08,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824862300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:08,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:08,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:08,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429985379] [2024-11-09 05:28:08,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:08,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:08,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:08,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:08,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:08,540 INFO L87 Difference]: Start difference. First operand 240 states and 344 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:09,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:09,084 INFO L93 Difference]: Finished difference Result 288 states and 411 transitions. [2024-11-09 05:28:09,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:28:09,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2024-11-09 05:28:09,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:09,087 INFO L225 Difference]: With dead ends: 288 [2024-11-09 05:28:09,087 INFO L226 Difference]: Without dead ends: 282 [2024-11-09 05:28:09,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:28:09,089 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 146 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:09,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 98 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:28:09,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-09 05:28:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 268. [2024-11-09 05:28:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 217 states have (on average 1.6866359447004609) internal successors, (366), 253 states have internal predecessors, (366), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:28:09,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 390 transitions. [2024-11-09 05:28:09,135 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 390 transitions. Word has length 31 [2024-11-09 05:28:09,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:09,135 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 390 transitions. [2024-11-09 05:28:09,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:09,136 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 390 transitions. [2024-11-09 05:28:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:28:09,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:09,138 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:09,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:28:09,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:09,339 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:09,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:09,339 INFO L85 PathProgramCache]: Analyzing trace with hash 2019052853, now seen corresponding path program 1 times [2024-11-09 05:28:09,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:09,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459016348] [2024-11-09 05:28:09,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:09,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:28:09,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820351011] [2024-11-09 05:28:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:09,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:09,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:09,389 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:09,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:28:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:09,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:28:09,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:09,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:28:09,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459016348] [2024-11-09 05:28:09,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:28:09,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820351011] [2024-11-09 05:28:09,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820351011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:09,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:09,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:09,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127243120] [2024-11-09 05:28:09,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:09,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:09,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:09,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:09,573 INFO L87 Difference]: Start difference. First operand 268 states and 390 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:09,881 INFO L93 Difference]: Finished difference Result 385 states and 581 transitions. [2024-11-09 05:28:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:28:09,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2024-11-09 05:28:09,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:09,884 INFO L225 Difference]: With dead ends: 385 [2024-11-09 05:28:09,884 INFO L226 Difference]: Without dead ends: 379 [2024-11-09 05:28:09,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:28:09,886 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 197 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:09,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 70 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:28:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-09 05:28:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 361. [2024-11-09 05:28:09,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 307 states have (on average 1.703583061889251) internal successors, (523), 343 states have internal predecessors, (523), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:28:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 553 transitions. [2024-11-09 05:28:09,919 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 553 transitions. Word has length 31 [2024-11-09 05:28:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:09,919 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 553 transitions. [2024-11-09 05:28:09,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 553 transitions. [2024-11-09 05:28:09,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 05:28:09,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:09,921 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:09,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:28:10,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:10,122 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:10,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:10,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1418748211, now seen corresponding path program 1 times [2024-11-09 05:28:10,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:10,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919971167] [2024-11-09 05:28:10,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:10,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:28:10,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [670073574] [2024-11-09 05:28:10,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:10,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:10,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:10,150 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:10,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:28:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:10,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:28:10,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:10,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:28:10,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:10,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919971167] [2024-11-09 05:28:10,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:28:10,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670073574] [2024-11-09 05:28:10,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670073574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:10,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:10,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:10,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232927969] [2024-11-09 05:28:10,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:10,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:10,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:10,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:10,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:10,333 INFO L87 Difference]: Start difference. First operand 361 states and 553 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:10,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:10,831 INFO L93 Difference]: Finished difference Result 372 states and 560 transitions. [2024-11-09 05:28:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:28:10,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-11-09 05:28:10,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:10,834 INFO L225 Difference]: With dead ends: 372 [2024-11-09 05:28:10,834 INFO L226 Difference]: Without dead ends: 368 [2024-11-09 05:28:10,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:28:10,836 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 191 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:10,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 64 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:28:10,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-09 05:28:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 359. [2024-11-09 05:28:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 305 states have (on average 1.6721311475409837) internal successors, (510), 341 states have internal predecessors, (510), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:28:10,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 540 transitions. [2024-11-09 05:28:10,866 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 540 transitions. Word has length 32 [2024-11-09 05:28:10,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:10,866 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 540 transitions. [2024-11-09 05:28:10,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:10,866 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 540 transitions. [2024-11-09 05:28:10,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 05:28:10,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:10,867 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:10,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:28:11,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:11,068 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:11,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:11,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1833870900, now seen corresponding path program 1 times [2024-11-09 05:28:11,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:11,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859169617] [2024-11-09 05:28:11,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:11,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:11,149 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:11,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:11,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859169617] [2024-11-09 05:28:11,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859169617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:11,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:11,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:11,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433912054] [2024-11-09 05:28:11,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:11,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:11,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:11,152 INFO L87 Difference]: Start difference. First operand 359 states and 540 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:11,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:11,957 INFO L93 Difference]: Finished difference Result 460 states and 665 transitions. [2024-11-09 05:28:11,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:28:11,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-11-09 05:28:11,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:11,960 INFO L225 Difference]: With dead ends: 460 [2024-11-09 05:28:11,961 INFO L226 Difference]: Without dead ends: 459 [2024-11-09 05:28:11,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:11,962 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 58 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:11,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 181 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:28:11,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-09 05:28:11,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 392. [2024-11-09 05:28:11,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 337 states have (on average 1.6587537091988132) internal successors, (559), 373 states have internal predecessors, (559), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:28:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 591 transitions. [2024-11-09 05:28:11,990 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 591 transitions. Word has length 32 [2024-11-09 05:28:11,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:11,991 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 591 transitions. [2024-11-09 05:28:11,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 591 transitions. [2024-11-09 05:28:11,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 05:28:11,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:11,992 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:11,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:28:11,993 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:11,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:11,993 INFO L85 PathProgramCache]: Analyzing trace with hash -617353083, now seen corresponding path program 1 times [2024-11-09 05:28:11,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:11,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641200405] [2024-11-09 05:28:11,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:11,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:12,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:12,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641200405] [2024-11-09 05:28:12,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641200405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:12,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:12,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:28:12,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227473923] [2024-11-09 05:28:12,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:12,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:28:12,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:12,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:28:12,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:28:12,128 INFO L87 Difference]: Start difference. First operand 392 states and 591 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:13,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:13,088 INFO L93 Difference]: Finished difference Result 490 states and 746 transitions. [2024-11-09 05:28:13,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:28:13,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2024-11-09 05:28:13,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:13,091 INFO L225 Difference]: With dead ends: 490 [2024-11-09 05:28:13,091 INFO L226 Difference]: Without dead ends: 488 [2024-11-09 05:28:13,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:28:13,092 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 363 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:13,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 94 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:28:13,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-09 05:28:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 396. [2024-11-09 05:28:13,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 341 states have (on average 1.653958944281525) internal successors, (564), 377 states have internal predecessors, (564), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:28:13,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 596 transitions. [2024-11-09 05:28:13,119 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 596 transitions. Word has length 33 [2024-11-09 05:28:13,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:13,120 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 596 transitions. [2024-11-09 05:28:13,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:13,120 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 596 transitions. [2024-11-09 05:28:13,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 05:28:13,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:13,121 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:13,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 05:28:13,121 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:13,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:13,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1031521467, now seen corresponding path program 1 times [2024-11-09 05:28:13,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:13,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929317200] [2024-11-09 05:28:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:13,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:13,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:13,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929317200] [2024-11-09 05:28:13,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929317200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:13,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:13,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:13,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640239879] [2024-11-09 05:28:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:13,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:13,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:13,196 INFO L87 Difference]: Start difference. First operand 396 states and 596 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:14,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:14,022 INFO L93 Difference]: Finished difference Result 460 states and 661 transitions. [2024-11-09 05:28:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:28:14,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-09 05:28:14,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:14,025 INFO L225 Difference]: With dead ends: 460 [2024-11-09 05:28:14,025 INFO L226 Difference]: Without dead ends: 459 [2024-11-09 05:28:14,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:14,026 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 56 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:14,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 203 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:28:14,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-09 05:28:14,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 407. [2024-11-09 05:28:14,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 352 states have (on average 1.6448863636363635) internal successors, (579), 388 states have internal predecessors, (579), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:28:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 611 transitions. [2024-11-09 05:28:14,053 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 611 transitions. Word has length 33 [2024-11-09 05:28:14,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:14,054 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 611 transitions. [2024-11-09 05:28:14,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 611 transitions. [2024-11-09 05:28:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 05:28:14,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:14,055 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:14,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 05:28:14,055 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:14,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:14,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1015422953, now seen corresponding path program 1 times [2024-11-09 05:28:14,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:14,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771148298] [2024-11-09 05:28:14,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:14,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:14,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:14,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:14,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771148298] [2024-11-09 05:28:14,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771148298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:14,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:14,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:14,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667146391] [2024-11-09 05:28:14,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:14,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:14,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:14,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:14,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:14,120 INFO L87 Difference]: Start difference. First operand 407 states and 611 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:15,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:15,270 INFO L93 Difference]: Finished difference Result 460 states and 659 transitions. [2024-11-09 05:28:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:28:15,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-09 05:28:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:15,273 INFO L225 Difference]: With dead ends: 460 [2024-11-09 05:28:15,273 INFO L226 Difference]: Without dead ends: 459 [2024-11-09 05:28:15,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:15,274 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 56 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:15,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 197 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:28:15,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-09 05:28:15,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 409. [2024-11-09 05:28:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 354 states have (on average 1.6412429378531073) internal successors, (581), 390 states have internal predecessors, (581), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:28:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 613 transitions. [2024-11-09 05:28:15,300 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 613 transitions. Word has length 33 [2024-11-09 05:28:15,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:15,300 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 613 transitions. [2024-11-09 05:28:15,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:15,301 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 613 transitions. [2024-11-09 05:28:15,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:28:15,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:15,301 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:15,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:28:15,302 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:15,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:15,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1958076259, now seen corresponding path program 1 times [2024-11-09 05:28:15,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:15,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5985807] [2024-11-09 05:28:15,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:15,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:15,406 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:15,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:15,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5985807] [2024-11-09 05:28:15,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5985807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:15,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:15,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:28:15,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419502096] [2024-11-09 05:28:15,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:15,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:28:15,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:15,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:28:15,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:28:15,409 INFO L87 Difference]: Start difference. First operand 409 states and 613 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:16,247 INFO L93 Difference]: Finished difference Result 416 states and 620 transitions. [2024-11-09 05:28:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:28:16,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2024-11-09 05:28:16,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:16,251 INFO L225 Difference]: With dead ends: 416 [2024-11-09 05:28:16,251 INFO L226 Difference]: Without dead ends: 414 [2024-11-09 05:28:16,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:28:16,252 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 401 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:16,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 72 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:28:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-09 05:28:16,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 409. [2024-11-09 05:28:16,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 354 states have (on average 1.6271186440677967) internal successors, (576), 390 states have internal predecessors, (576), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:28:16,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 608 transitions. [2024-11-09 05:28:16,284 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 608 transitions. Word has length 34 [2024-11-09 05:28:16,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:16,285 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 608 transitions. [2024-11-09 05:28:16,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:28:16,286 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 608 transitions. [2024-11-09 05:28:16,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:28:16,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:16,287 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:16,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 05:28:16,287 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:16,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:16,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1912394289, now seen corresponding path program 1 times [2024-11-09 05:28:16,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:16,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256396826] [2024-11-09 05:28:16,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:16,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:28:16,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:16,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256396826] [2024-11-09 05:28:16,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256396826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:16,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:16,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:28:16,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723961610] [2024-11-09 05:28:16,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:16,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:28:16,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:16,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:28:16,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:16,450 INFO L87 Difference]: Start difference. First operand 409 states and 608 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:17,481 INFO L93 Difference]: Finished difference Result 460 states and 651 transitions. [2024-11-09 05:28:17,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:28:17,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-11-09 05:28:17,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:17,484 INFO L225 Difference]: With dead ends: 460 [2024-11-09 05:28:17,484 INFO L226 Difference]: Without dead ends: 459 [2024-11-09 05:28:17,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:28:17,485 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 55 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:17,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 198 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 05:28:17,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-09 05:28:17,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 411. [2024-11-09 05:28:17,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 356 states have (on average 1.6235955056179776) internal successors, (578), 392 states have internal predecessors, (578), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:28:17,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 610 transitions. [2024-11-09 05:28:17,512 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 610 transitions. Word has length 34 [2024-11-09 05:28:17,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:17,512 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 610 transitions. [2024-11-09 05:28:17,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:17,512 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 610 transitions. [2024-11-09 05:28:17,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:28:17,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:17,513 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:17,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 05:28:17,515 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:17,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:17,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1172427968, now seen corresponding path program 1 times [2024-11-09 05:28:17,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:17,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881304262] [2024-11-09 05:28:17,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:17,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:28:17,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672004552] [2024-11-09 05:28:17,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:17,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:17,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:17,536 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:17,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:28:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:17,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 05:28:17,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:28:17,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:28:21,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881304262] [2024-11-09 05:28:21,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:28:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672004552] [2024-11-09 05:28:21,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672004552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:28:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1835771802] [2024-11-09 05:28:21,378 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 05:28:21,378 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:28:21,378 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:28:21,378 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:28:21,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:28:25,130 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 81 for LOIs [2024-11-09 05:28:25,257 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:28:25,258 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:28:38,306 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10456#(exists ((|v_ULTIMATE.start_main_~a~0#1_86| Int) (|v_ULTIMATE.start_main_~b~0#1_86| Int)) (and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~a~0#1_85| Int)) (and (<= (div |v_ULTIMATE.start_main_~a~0#1_85| 2) 9223372036854775807) (= (div |v_ULTIMATE.start_main_~a~0#1_85| 2) |v_ULTIMATE.start_main_~a~0#1_86|) (= (mod |v_ULTIMATE.start_main_~a~0#1_85| 2) 0) (<= 0 (+ (div |v_ULTIMATE.start_main_~a~0#1_85| 2) 9223372036854775808)))) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (= (mod |ULTIMATE.start_main_~p~0#1| 4) 0) (<= |ULTIMATE.start_main_~x~0#1| 10) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 0 (+ (div |ULTIMATE.start_main_~p~0#1| 4) 2305843009213693952)) (<= (+ (* |v_ULTIMATE.start_main_~b~0#1_86| |v_ULTIMATE.start_main_~a~0#1_86|) 9223372036854775809) 0) (<= (div |ULTIMATE.start_main_~p~0#1| 4) 2305843009213693951) (exists ((|v_ULTIMATE.start_main_~b~0#1_85| Int)) (and (<= 0 (+ (div |v_ULTIMATE.start_main_~b~0#1_85| 2) 9223372036854775808)) (= |v_ULTIMATE.start_main_~b~0#1_86| (div |v_ULTIMATE.start_main_~b~0#1_85| 2)) (= (mod |v_ULTIMATE.start_main_~b~0#1_85| 2) 0) (<= (div |v_ULTIMATE.start_main_~b~0#1_85| 2) 9223372036854775807)))))' at error location [2024-11-09 05:28:38,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:28:38,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:28:38,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 05:28:38,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281507584] [2024-11-09 05:28:38,307 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:28:38,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:28:38,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:38,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:28:38,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1192, Unknown=4, NotChecked=0, Total=1406 [2024-11-09 05:28:38,309 INFO L87 Difference]: Start difference. First operand 411 states and 610 transitions. Second operand has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:28:39,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:39,175 INFO L93 Difference]: Finished difference Result 481 states and 711 transitions. [2024-11-09 05:28:39,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:28:39,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 34 [2024-11-09 05:28:39,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:39,178 INFO L225 Difference]: With dead ends: 481 [2024-11-09 05:28:39,179 INFO L226 Difference]: Without dead ends: 473 [2024-11-09 05:28:39,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=265, Invalid=1453, Unknown=4, NotChecked=0, Total=1722 [2024-11-09 05:28:39,180 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 203 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:39,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 171 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:28:39,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-09 05:28:39,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 449. [2024-11-09 05:28:39,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 392 states have (on average 1.594387755102041) internal successors, (625), 428 states have internal predecessors, (625), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:28:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 661 transitions. [2024-11-09 05:28:39,214 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 661 transitions. Word has length 34 [2024-11-09 05:28:39,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:39,215 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 661 transitions. [2024-11-09 05:28:39,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:28:39,215 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 661 transitions. [2024-11-09 05:28:39,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:28:39,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:39,216 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:39,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:28:39,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 05:28:39,417 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:39,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:39,417 INFO L85 PathProgramCache]: Analyzing trace with hash -863880199, now seen corresponding path program 1 times [2024-11-09 05:28:39,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:39,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408217149] [2024-11-09 05:28:39,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:39,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:28:39,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632302906] [2024-11-09 05:28:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:39,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:39,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:39,450 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:39,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:28:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:39,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:28:39,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:28:39,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:28:39,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:39,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408217149] [2024-11-09 05:28:39,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:28:39,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632302906] [2024-11-09 05:28:39,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632302906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:28:39,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:28:39,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:28:39,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618075573] [2024-11-09 05:28:39,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:28:39,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:28:39,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:39,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:28:39,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:28:39,645 INFO L87 Difference]: Start difference. First operand 449 states and 661 transitions. Second operand has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:40,289 INFO L93 Difference]: Finished difference Result 460 states and 669 transitions. [2024-11-09 05:28:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:28:40,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-11-09 05:28:40,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:40,292 INFO L225 Difference]: With dead ends: 460 [2024-11-09 05:28:40,292 INFO L226 Difference]: Without dead ends: 455 [2024-11-09 05:28:40,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:28:40,293 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 159 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:40,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 183 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:28:40,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-09 05:28:40,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 449. [2024-11-09 05:28:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 392 states have (on average 1.5841836734693877) internal successors, (621), 428 states have internal predecessors, (621), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:28:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 657 transitions. [2024-11-09 05:28:40,326 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 657 transitions. Word has length 35 [2024-11-09 05:28:40,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:40,327 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 657 transitions. [2024-11-09 05:28:40,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:28:40,327 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 657 transitions. [2024-11-09 05:28:40,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:28:40,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:40,328 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-09 05:28:40,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:28:40,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 05:28:40,533 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:28:40,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:40,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1985528689, now seen corresponding path program 1 times [2024-11-09 05:28:40,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:40,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286893746] [2024-11-09 05:28:40,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:40,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:28:40,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045224273] [2024-11-09 05:28:40,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:40,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:40,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:40,576 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:40,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:28:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:40,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 05:28:40,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:28:41,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:28:43,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:43,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286893746] [2024-11-09 05:28:43,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:28:43,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045224273] [2024-11-09 05:28:43,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045224273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:28:43,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [245872634] [2024-11-09 05:28:43,432 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 05:28:43,432 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:28:43,432 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:28:43,433 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:28:43,433 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:28:46,663 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 81 for LOIs [2024-11-09 05:28:46,746 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:28:46,748 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:29:05,681 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12744#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (exists ((|v_ULTIMATE.start_main_~a~0#1_94| Int) (|v_ULTIMATE.start_main_~b~0#1_93| Int)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~b~0#1_93| |v_ULTIMATE.start_main_~a~0#1_94|))) (<= |ULTIMATE.start_main_~x~0#1| 10) (= |ULTIMATE.start_main_~q~0#1| 0))' at error location [2024-11-09 05:29:05,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:29:05,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:29:05,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:29:05,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195714970] [2024-11-09 05:29:05,682 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:29:05,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:29:05,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:05,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:29:05,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1260, Unknown=5, NotChecked=0, Total=1482 [2024-11-09 05:29:05,684 INFO L87 Difference]: Start difference. First operand 449 states and 657 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:29:09,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:09,132 INFO L93 Difference]: Finished difference Result 762 states and 1142 transitions. [2024-11-09 05:29:09,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:29:09,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 35 [2024-11-09 05:29:09,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:09,135 INFO L225 Difference]: With dead ends: 762 [2024-11-09 05:29:09,135 INFO L226 Difference]: Without dead ends: 656 [2024-11-09 05:29:09,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=373, Invalid=1974, Unknown=5, NotChecked=0, Total=2352 [2024-11-09 05:29:09,137 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 323 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:09,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 182 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 05:29:09,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-09 05:29:09,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 464. [2024-11-09 05:29:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 408 states have (on average 1.4975490196078431) internal successors, (611), 444 states have internal predecessors, (611), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:29:09,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 645 transitions. [2024-11-09 05:29:09,172 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 645 transitions. Word has length 35 [2024-11-09 05:29:09,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:09,172 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 645 transitions. [2024-11-09 05:29:09,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:29:09,173 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 645 transitions. [2024-11-09 05:29:09,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:29:09,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:09,174 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:09,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 05:29:09,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 05:29:09,378 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:09,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:09,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1196113545, now seen corresponding path program 1 times [2024-11-09 05:29:09,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:09,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441364543] [2024-11-09 05:29:09,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:09,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:29:09,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1212902678] [2024-11-09 05:29:09,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:09,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:09,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:09,398 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:09,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:29:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:09,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:29:09,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:29:09,673 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:29:09,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:09,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441364543] [2024-11-09 05:29:09,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:29:09,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212902678] [2024-11-09 05:29:09,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212902678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:09,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:09,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:29:09,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735201429] [2024-11-09 05:29:09,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:09,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:29:09,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:09,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:29:09,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:29:09,676 INFO L87 Difference]: Start difference. First operand 464 states and 645 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:29:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:10,563 INFO L93 Difference]: Finished difference Result 552 states and 774 transitions. [2024-11-09 05:29:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:29:10,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 37 [2024-11-09 05:29:10,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:10,566 INFO L225 Difference]: With dead ends: 552 [2024-11-09 05:29:10,566 INFO L226 Difference]: Without dead ends: 545 [2024-11-09 05:29:10,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:29:10,567 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 400 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:10,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 71 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:29:10,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-09 05:29:10,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 499. [2024-11-09 05:29:10,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 442 states have (on average 1.497737556561086) internal successors, (662), 478 states have internal predecessors, (662), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:29:10,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 698 transitions. [2024-11-09 05:29:10,608 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 698 transitions. Word has length 37 [2024-11-09 05:29:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:10,608 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 698 transitions. [2024-11-09 05:29:10,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:29:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 698 transitions. [2024-11-09 05:29:10,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:29:10,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:10,609 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:10,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:29:10,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 05:29:10,813 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:10,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:10,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1127592339, now seen corresponding path program 1 times [2024-11-09 05:29:10,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:10,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377015798] [2024-11-09 05:29:10,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:10,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:29:10,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021549210] [2024-11-09 05:29:10,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:10,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:10,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:10,832 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:10,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:29:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:10,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 05:29:10,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:11,561 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:29:11,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:29:13,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:13,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377015798] [2024-11-09 05:29:13,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:29:13,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021549210] [2024-11-09 05:29:13,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021549210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:13,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [228090915] [2024-11-09 05:29:13,781 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 05:29:13,782 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:29:13,782 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:29:13,782 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:29:13,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:29:16,000 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 81 for LOIs [2024-11-09 05:29:16,063 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:29:16,064 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:29:31,159 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15521#(exists ((|v_ULTIMATE.start_main_~a~0#1_102| Int) (|v_ULTIMATE.start_main_~p~0#1_67| Int) (|v_ULTIMATE.start_main_~b~0#1_101| Int)) (and (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_102| |v_ULTIMATE.start_main_~b~0#1_101|))) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~a~0#1_101| Int)) (and (= |v_ULTIMATE.start_main_~a~0#1_102| (div |v_ULTIMATE.start_main_~a~0#1_101| 2)) (<= (div |v_ULTIMATE.start_main_~a~0#1_101| 2) 9223372036854775807) (= (mod |v_ULTIMATE.start_main_~a~0#1_101| 2) 0))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_102| |v_ULTIMATE.start_main_~b~0#1_101| |v_ULTIMATE.start_main_~p~0#1_67|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= (* |v_ULTIMATE.start_main_~a~0#1_102| |v_ULTIMATE.start_main_~b~0#1_101|) 9223372036854775807) (= (mod |v_ULTIMATE.start_main_~p~0#1_67| 4) 0) (<= |ULTIMATE.start_main_~x~0#1| 10) (= |ULTIMATE.start_main_~q~0#1| 0) (<= (div |v_ULTIMATE.start_main_~p~0#1_67| 4) 2305843009213693951) (exists ((|v_ULTIMATE.start_main_~b~0#1_100| Int)) (and (= (mod |v_ULTIMATE.start_main_~b~0#1_100| 2) 0) (<= (div |v_ULTIMATE.start_main_~b~0#1_100| 2) 9223372036854775807) (= (div |v_ULTIMATE.start_main_~b~0#1_100| 2) |v_ULTIMATE.start_main_~b~0#1_101|))) (<= 0 (+ (div |v_ULTIMATE.start_main_~p~0#1_67| 4) 2305843009213693952))))' at error location [2024-11-09 05:29:31,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:29:31,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:29:31,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 05:29:31,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835033819] [2024-11-09 05:29:31,159 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:29:31,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:29:31,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:31,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:29:31,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1331, Unknown=2, NotChecked=0, Total=1560 [2024-11-09 05:29:31,161 INFO L87 Difference]: Start difference. First operand 499 states and 698 transitions. Second operand has 12 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:29:32,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:32,234 INFO L93 Difference]: Finished difference Result 544 states and 756 transitions. [2024-11-09 05:29:32,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:29:32,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2024-11-09 05:29:32,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:32,237 INFO L225 Difference]: With dead ends: 544 [2024-11-09 05:29:32,237 INFO L226 Difference]: Without dead ends: 543 [2024-11-09 05:29:32,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=299, Invalid=1769, Unknown=2, NotChecked=0, Total=2070 [2024-11-09 05:29:32,238 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 197 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:32,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 137 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:29:32,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-09 05:29:32,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 509. [2024-11-09 05:29:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 452 states have (on average 1.4823008849557522) internal successors, (670), 488 states have internal predecessors, (670), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:29:32,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 706 transitions. [2024-11-09 05:29:32,275 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 706 transitions. Word has length 37 [2024-11-09 05:29:32,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:32,276 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 706 transitions. [2024-11-09 05:29:32,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:29:32,276 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 706 transitions. [2024-11-09 05:29:32,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 05:29:32,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:32,277 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:32,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 05:29:32,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:32,477 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:32,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:32,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1575185631, now seen corresponding path program 1 times [2024-11-09 05:29:32,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:32,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010291862] [2024-11-09 05:29:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:32,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:29:32,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034201000] [2024-11-09 05:29:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:32,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:32,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:32,498 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:32,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:29:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:32,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:29:32,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:29:32,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:29:32,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:32,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010291862] [2024-11-09 05:29:32,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:29:32,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034201000] [2024-11-09 05:29:32,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034201000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:32,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:32,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:29:32,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928185822] [2024-11-09 05:29:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:32,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:29:32,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:32,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:29:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:29:32,742 INFO L87 Difference]: Start difference. First operand 509 states and 706 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:29:33,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:33,327 INFO L93 Difference]: Finished difference Result 533 states and 736 transitions. [2024-11-09 05:29:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:29:33,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-11-09 05:29:33,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:33,330 INFO L225 Difference]: With dead ends: 533 [2024-11-09 05:29:33,330 INFO L226 Difference]: Without dead ends: 532 [2024-11-09 05:29:33,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:29:33,331 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 384 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:33,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 68 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:29:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-09 05:29:33,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 509. [2024-11-09 05:29:33,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 452 states have (on average 1.4756637168141593) internal successors, (667), 488 states have internal predecessors, (667), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:29:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 703 transitions. [2024-11-09 05:29:33,381 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 703 transitions. Word has length 38 [2024-11-09 05:29:33,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:33,381 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 703 transitions. [2024-11-09 05:29:33,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:29:33,381 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 703 transitions. [2024-11-09 05:29:33,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 05:29:33,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:33,382 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:33,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 05:29:33,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:33,583 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:33,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:33,583 INFO L85 PathProgramCache]: Analyzing trace with hash 595624196, now seen corresponding path program 1 times [2024-11-09 05:29:33,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:33,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096902992] [2024-11-09 05:29:33,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:33,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:29:33,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:33,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096902992] [2024-11-09 05:29:33,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096902992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:33,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:33,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:29:33,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074124018] [2024-11-09 05:29:33,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:33,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:29:33,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:33,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:29:33,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:29:33,648 INFO L87 Difference]: Start difference. First operand 509 states and 703 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:34,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:34,607 INFO L93 Difference]: Finished difference Result 529 states and 720 transitions. [2024-11-09 05:29:34,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:29:34,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-11-09 05:29:34,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:34,609 INFO L225 Difference]: With dead ends: 529 [2024-11-09 05:29:34,609 INFO L226 Difference]: Without dead ends: 528 [2024-11-09 05:29:34,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:29:34,610 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 42 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:34,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 165 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:29:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-09 05:29:34,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 509. [2024-11-09 05:29:34,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 452 states have (on average 1.4734513274336283) internal successors, (666), 488 states have internal predecessors, (666), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:29:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 702 transitions. [2024-11-09 05:29:34,645 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 702 transitions. Word has length 38 [2024-11-09 05:29:34,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:34,645 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 702 transitions. [2024-11-09 05:29:34,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 702 transitions. [2024-11-09 05:29:34,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 05:29:34,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:34,647 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:34,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 05:29:34,647 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:34,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:34,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1586114165, now seen corresponding path program 1 times [2024-11-09 05:29:34,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:34,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803586380] [2024-11-09 05:29:34,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:34,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:34,714 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:29:34,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:34,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803586380] [2024-11-09 05:29:34,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803586380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:34,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:34,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:29:34,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914032865] [2024-11-09 05:29:34,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:34,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:29:34,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:34,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:29:34,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:29:34,716 INFO L87 Difference]: Start difference. First operand 509 states and 702 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:35,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:35,235 INFO L93 Difference]: Finished difference Result 529 states and 719 transitions. [2024-11-09 05:29:35,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:29:35,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-09 05:29:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:35,238 INFO L225 Difference]: With dead ends: 529 [2024-11-09 05:29:35,238 INFO L226 Difference]: Without dead ends: 528 [2024-11-09 05:29:35,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:29:35,239 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 28 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:35,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 173 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:29:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-09 05:29:35,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 520. [2024-11-09 05:29:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 463 states have (on average 1.4665226781857452) internal successors, (679), 499 states have internal predecessors, (679), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:29:35,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 715 transitions. [2024-11-09 05:29:35,279 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 715 transitions. Word has length 39 [2024-11-09 05:29:35,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:35,279 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 715 transitions. [2024-11-09 05:29:35,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 715 transitions. [2024-11-09 05:29:35,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 05:29:35,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:35,281 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:35,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 05:29:35,281 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:35,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:35,281 INFO L85 PathProgramCache]: Analyzing trace with hash 146318269, now seen corresponding path program 1 times [2024-11-09 05:29:35,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:35,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892642187] [2024-11-09 05:29:35,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:35,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:29:35,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238338802] [2024-11-09 05:29:35,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:35,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:35,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:35,300 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:35,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 05:29:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:35,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:29:35,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:29:35,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:29:35,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:35,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892642187] [2024-11-09 05:29:35,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:29:35,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238338802] [2024-11-09 05:29:35,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238338802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:35,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:35,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:29:35,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771541758] [2024-11-09 05:29:35,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:35,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:29:35,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:35,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:29:35,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:29:35,518 INFO L87 Difference]: Start difference. First operand 520 states and 715 transitions. Second operand has 7 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:36,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:36,215 INFO L93 Difference]: Finished difference Result 527 states and 720 transitions. [2024-11-09 05:29:36,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:29:36,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-09 05:29:36,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:36,217 INFO L225 Difference]: With dead ends: 527 [2024-11-09 05:29:36,218 INFO L226 Difference]: Without dead ends: 525 [2024-11-09 05:29:36,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:29:36,218 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 152 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:36,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 198 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:29:36,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-09 05:29:36,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 520. [2024-11-09 05:29:36,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 463 states have (on average 1.4622030237580994) internal successors, (677), 499 states have internal predecessors, (677), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:29:36,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 713 transitions. [2024-11-09 05:29:36,266 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 713 transitions. Word has length 39 [2024-11-09 05:29:36,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:36,266 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 713 transitions. [2024-11-09 05:29:36,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:36,266 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 713 transitions. [2024-11-09 05:29:36,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 05:29:36,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:36,267 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:36,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 05:29:36,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:36,471 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:36,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:36,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1284480949, now seen corresponding path program 1 times [2024-11-09 05:29:36,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:36,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412582092] [2024-11-09 05:29:36,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:36,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:36,788 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:29:36,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:36,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412582092] [2024-11-09 05:29:36,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412582092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:36,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:36,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:29:36,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71773309] [2024-11-09 05:29:36,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:36,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:29:36,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:36,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:29:36,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:29:36,790 INFO L87 Difference]: Start difference. First operand 520 states and 713 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:37,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:37,788 INFO L93 Difference]: Finished difference Result 529 states and 715 transitions. [2024-11-09 05:29:37,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:29:37,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-09 05:29:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:37,790 INFO L225 Difference]: With dead ends: 529 [2024-11-09 05:29:37,790 INFO L226 Difference]: Without dead ends: 528 [2024-11-09 05:29:37,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:29:37,791 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 49 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:37,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 154 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 05:29:37,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-09 05:29:37,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 520. [2024-11-09 05:29:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 463 states have (on average 1.4600431965442764) internal successors, (676), 499 states have internal predecessors, (676), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:29:37,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 712 transitions. [2024-11-09 05:29:37,830 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 712 transitions. Word has length 39 [2024-11-09 05:29:37,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:37,831 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 712 transitions. [2024-11-09 05:29:37,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:37,831 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 712 transitions. [2024-11-09 05:29:37,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 05:29:37,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:37,832 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:37,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 05:29:37,832 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:37,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:37,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1924898717, now seen corresponding path program 1 times [2024-11-09 05:29:37,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:37,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251476112] [2024-11-09 05:29:37,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:37,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:37,902 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:29:37,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:37,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251476112] [2024-11-09 05:29:37,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251476112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:37,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:37,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:29:37,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903129526] [2024-11-09 05:29:37,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:37,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:29:37,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:37,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:29:37,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:29:37,904 INFO L87 Difference]: Start difference. First operand 520 states and 712 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:38,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:38,369 INFO L93 Difference]: Finished difference Result 529 states and 714 transitions. [2024-11-09 05:29:38,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:29:38,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-09 05:29:38,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:38,372 INFO L225 Difference]: With dead ends: 529 [2024-11-09 05:29:38,373 INFO L226 Difference]: Without dead ends: 528 [2024-11-09 05:29:38,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:29:38,373 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 26 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:38,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 177 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:29:38,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-09 05:29:38,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 521. [2024-11-09 05:29:38,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 464 states have (on average 1.456896551724138) internal successors, (676), 500 states have internal predecessors, (676), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 05:29:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 712 transitions. [2024-11-09 05:29:38,412 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 712 transitions. Word has length 40 [2024-11-09 05:29:38,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:38,412 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 712 transitions. [2024-11-09 05:29:38,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:29:38,413 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 712 transitions. [2024-11-09 05:29:38,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 05:29:38,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:38,413 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:38,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 05:29:38,414 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:38,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:38,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1305397109, now seen corresponding path program 1 times [2024-11-09 05:29:38,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:38,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19129922] [2024-11-09 05:29:38,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:38,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:29:38,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757261988] [2024-11-09 05:29:38,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:38,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:38,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:38,432 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:38,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:29:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:38,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:29:38,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:29:38,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:29:41,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:41,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19129922] [2024-11-09 05:29:41,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:29:41,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757261988] [2024-11-09 05:29:41,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757261988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:41,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1994688373] [2024-11-09 05:29:41,474 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-09 05:29:41,475 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:29:41,475 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:29:41,475 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:29:41,475 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:29:43,249 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 41 for LOIs [2024-11-09 05:29:43,257 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:29:43,258 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:29:45,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1994688373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:45,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:29:45,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 22 [2024-11-09 05:29:45,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920910408] [2024-11-09 05:29:45,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:45,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 05:29:45,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:45,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 05:29:45,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=483, Unknown=1, NotChecked=0, Total=650 [2024-11-09 05:29:45,725 INFO L87 Difference]: Start difference. First operand 521 states and 712 transitions. Second operand has 18 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:29:47,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:47,182 INFO L93 Difference]: Finished difference Result 564 states and 759 transitions. [2024-11-09 05:29:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 05:29:47,182 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 40 [2024-11-09 05:29:47,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:47,184 INFO L225 Difference]: With dead ends: 564 [2024-11-09 05:29:47,184 INFO L226 Difference]: Without dead ends: 558 [2024-11-09 05:29:47,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 59 SyntacticMatches, 13 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=205, Invalid=550, Unknown=1, NotChecked=0, Total=756 [2024-11-09 05:29:47,185 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 471 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:47,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 204 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:29:47,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-09 05:29:47,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 541. [2024-11-09 05:29:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 483 states have (on average 1.445134575569358) internal successors, (698), 519 states have internal predecessors, (698), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 05:29:47,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 736 transitions. [2024-11-09 05:29:47,243 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 736 transitions. Word has length 40 [2024-11-09 05:29:47,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:47,244 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 736 transitions. [2024-11-09 05:29:47,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:29:47,244 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 736 transitions. [2024-11-09 05:29:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 05:29:47,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:47,245 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:47,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:29:47,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 05:29:47,449 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:47,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:47,450 INFO L85 PathProgramCache]: Analyzing trace with hash 240899100, now seen corresponding path program 1 times [2024-11-09 05:29:47,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:47,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118930442] [2024-11-09 05:29:47,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:47,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:29:47,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592182303] [2024-11-09 05:29:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:47,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:47,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:47,465 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:47,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:29:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:47,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:29:47,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:48,049 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:29:48,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:29:48,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:48,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118930442] [2024-11-09 05:29:48,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:29:48,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592182303] [2024-11-09 05:29:48,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592182303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:48,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [707066069] [2024-11-09 05:29:48,840 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2024-11-09 05:29:48,840 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:29:48,841 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:29:48,841 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:29:48,841 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:29:50,738 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 41 for LOIs [2024-11-09 05:29:50,745 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:29:50,746 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:29:54,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [707066069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:54,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:29:54,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 24 [2024-11-09 05:29:54,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253727264] [2024-11-09 05:29:54,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:54,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 05:29:54,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:54,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 05:29:54,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2024-11-09 05:29:54,175 INFO L87 Difference]: Start difference. First operand 541 states and 736 transitions. Second operand has 17 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:29:55,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:55,144 INFO L93 Difference]: Finished difference Result 551 states and 744 transitions. [2024-11-09 05:29:55,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:29:55,144 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 40 [2024-11-09 05:29:55,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:55,146 INFO L225 Difference]: With dead ends: 551 [2024-11-09 05:29:55,146 INFO L226 Difference]: Without dead ends: 549 [2024-11-09 05:29:55,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 69 SyntacticMatches, 15 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2024-11-09 05:29:55,148 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 352 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:55,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 173 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:29:55,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-09 05:29:55,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 535. [2024-11-09 05:29:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 477 states have (on average 1.4465408805031446) internal successors, (690), 513 states have internal predecessors, (690), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 05:29:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 728 transitions. [2024-11-09 05:29:55,187 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 728 transitions. Word has length 40 [2024-11-09 05:29:55,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:55,187 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 728 transitions. [2024-11-09 05:29:55,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:29:55,188 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 728 transitions. [2024-11-09 05:29:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:29:55,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:55,188 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:29:55,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 05:29:55,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 05:29:55,389 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:29:55,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:55,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1303238981, now seen corresponding path program 1 times [2024-11-09 05:29:55,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:55,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758068845] [2024-11-09 05:29:55,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:55,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:29:55,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673830593] [2024-11-09 05:29:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:55,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:55,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:55,417 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:55,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 05:29:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:55,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:29:55,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:29:55,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:29:55,972 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:29:55,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:55,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758068845] [2024-11-09 05:29:55,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:29:55,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673830593] [2024-11-09 05:29:55,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673830593] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:29:55,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1850571249] [2024-11-09 05:29:55,975 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-09 05:29:55,975 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:29:55,976 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:29:55,976 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:29:55,976 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:29:58,056 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 90 for LOIs [2024-11-09 05:29:58,128 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:29:58,130 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:30:03,449 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26748#(exists ((|v_ULTIMATE.start_main_~b~0#1_117| Int) (|v_ULTIMATE.start_main_~a~0#1_119| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= |v_ULTIMATE.start_main_~b~0#1_117| 9) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= |v_ULTIMATE.start_main_~a~0#1_119| 9) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_119| 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_117|)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~a~0#1_119| |v_ULTIMATE.start_main_~b~0#1_117|)) 0)))' at error location [2024-11-09 05:30:03,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:30:03,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:30:03,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2024-11-09 05:30:03,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202703232] [2024-11-09 05:30:03,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:30:03,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:30:03,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:30:03,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:30:03,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1170, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 05:30:03,451 INFO L87 Difference]: Start difference. First operand 535 states and 728 transitions. Second operand has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:30:04,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:30:04,241 INFO L93 Difference]: Finished difference Result 666 states and 934 transitions. [2024-11-09 05:30:04,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:30:04,242 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 42 [2024-11-09 05:30:04,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:30:04,245 INFO L225 Difference]: With dead ends: 666 [2024-11-09 05:30:04,245 INFO L226 Difference]: Without dead ends: 657 [2024-11-09 05:30:04,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 78 SyntacticMatches, 10 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=282, Invalid=1440, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:30:04,246 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 373 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:30:04,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 67 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:30:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-11-09 05:30:04,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 514. [2024-11-09 05:30:04,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 465 states have (on average 1.3806451612903226) internal successors, (642), 492 states have internal predecessors, (642), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 05:30:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 680 transitions. [2024-11-09 05:30:04,299 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 680 transitions. Word has length 42 [2024-11-09 05:30:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:30:04,299 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 680 transitions. [2024-11-09 05:30:04,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:30:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 680 transitions. [2024-11-09 05:30:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 05:30:04,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:30:04,300 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:30:04,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-09 05:30:04,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 05:30:04,501 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:30:04,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:30:04,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1745702796, now seen corresponding path program 1 times [2024-11-09 05:30:04,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:30:04,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385118850] [2024-11-09 05:30:04,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:04,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:30:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:30:04,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [6439469] [2024-11-09 05:30:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:04,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:04,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:30:04,524 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:30:04,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 05:30:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:30:04,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 05:30:04,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:30:05,472 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:30:05,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:30:07,103 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:30:07,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:30:07,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385118850] [2024-11-09 05:30:07,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:30:07,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6439469] [2024-11-09 05:30:07,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6439469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:30:07,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1366768984] [2024-11-09 05:30:07,105 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-09 05:30:07,106 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:30:07,106 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:30:07,106 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:30:07,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:30:08,550 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 90 for LOIs [2024-11-09 05:30:08,591 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:30:08,592 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:30:13,516 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28332#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (exists ((|v_ULTIMATE.start_main_~a~0#1_128| Int) (|v_ULTIMATE.start_main_~b~0#1_125| Int)) (and (<= |v_ULTIMATE.start_main_~a~0#1_128| 10) (<= 0 (+ |v_ULTIMATE.start_main_~b~0#1_125| 9223372036854775817)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_128| |v_ULTIMATE.start_main_~b~0#1_125|)) (<= |v_ULTIMATE.start_main_~b~0#1_125| 10) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_128| 9223372036854775817)))) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807))' at error location [2024-11-09 05:30:13,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:30:13,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:30:13,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-09 05:30:13,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959594101] [2024-11-09 05:30:13,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:30:13,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:30:13,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:30:13,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:30:13,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1344, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:30:13,519 INFO L87 Difference]: Start difference. First operand 514 states and 680 transitions. Second operand has 15 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-09 05:30:25,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:30:25,263 INFO L93 Difference]: Finished difference Result 999 states and 1349 transitions. [2024-11-09 05:30:25,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 05:30:25,264 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) Word has length 43 [2024-11-09 05:30:25,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:30:25,266 INFO L225 Difference]: With dead ends: 999 [2024-11-09 05:30:25,266 INFO L226 Difference]: Without dead ends: 968 [2024-11-09 05:30:25,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 80 SyntacticMatches, 9 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1133 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=427, Invalid=2543, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 05:30:25,268 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 924 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:30:25,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 107 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-09 05:30:25,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-11-09 05:30:25,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 761. [2024-11-09 05:30:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 707 states have (on average 1.3352192362093351) internal successors, (944), 733 states have internal predecessors, (944), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:30:25,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 994 transitions. [2024-11-09 05:30:25,362 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 994 transitions. Word has length 43 [2024-11-09 05:30:25,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:30:25,362 INFO L471 AbstractCegarLoop]: Abstraction has 761 states and 994 transitions. [2024-11-09 05:30:25,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-09 05:30:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 994 transitions. [2024-11-09 05:30:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 05:30:25,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:30:25,364 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:30:25,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 05:30:25,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 05:30:25,568 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:30:25,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:30:25,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1717788121, now seen corresponding path program 1 times [2024-11-09 05:30:25,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:30:25,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607719559] [2024-11-09 05:30:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:25,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:30:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:30:25,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149303868] [2024-11-09 05:30:25,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:25,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:25,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:30:25,592 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:30:25,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:30:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:30:25,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 05:30:25,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:30:25,955 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:30:25,955 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:30:28,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:30:28,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607719559] [2024-11-09 05:30:28,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:30:28,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149303868] [2024-11-09 05:30:28,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149303868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:30:28,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [470486001] [2024-11-09 05:30:28,118 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-09 05:30:28,119 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:30:28,119 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:30:28,119 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:30:28,119 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:30:29,447 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 90 for LOIs [2024-11-09 05:30:29,490 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:30:29,491 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:30:33,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [470486001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:30:33,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:30:33,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [7] total 31 [2024-11-09 05:30:33,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160192835] [2024-11-09 05:30:33,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:30:33,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 05:30:33,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:30:33,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 05:30:33,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1083, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 05:30:33,753 INFO L87 Difference]: Start difference. First operand 761 states and 994 transitions. Second operand has 26 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:30:44,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:30:44,784 INFO L93 Difference]: Finished difference Result 884 states and 1158 transitions. [2024-11-09 05:30:44,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-09 05:30:44,785 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2024-11-09 05:30:44,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:30:44,787 INFO L225 Difference]: With dead ends: 884 [2024-11-09 05:30:44,787 INFO L226 Difference]: Without dead ends: 881 [2024-11-09 05:30:44,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 63 SyntacticMatches, 11 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1265 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=928, Invalid=3628, Unknown=0, NotChecked=0, Total=4556 [2024-11-09 05:30:44,789 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 451 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:30:44,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 91 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 05:30:44,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-09 05:30:44,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 809. [2024-11-09 05:30:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 754 states have (on average 1.33289124668435) internal successors, (1005), 780 states have internal predecessors, (1005), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 05:30:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1057 transitions. [2024-11-09 05:30:44,900 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1057 transitions. Word has length 44 [2024-11-09 05:30:44,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:30:44,901 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1057 transitions. [2024-11-09 05:30:44,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:30:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1057 transitions. [2024-11-09 05:30:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:30:44,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:30:44,902 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:30:44,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 05:30:45,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:45,107 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:30:45,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:30:45,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1526940919, now seen corresponding path program 1 times [2024-11-09 05:30:45,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:30:45,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165526437] [2024-11-09 05:30:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:45,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:30:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:30:45,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1808238383] [2024-11-09 05:30:45,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:45,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:45,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:30:45,131 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:30:45,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 05:30:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:30:45,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:30:45,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:30:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:30:45,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:30:48,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:30:48,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165526437] [2024-11-09 05:30:48,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:30:48,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808238383] [2024-11-09 05:30:48,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808238383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:30:48,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1799495350] [2024-11-09 05:30:48,450 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-09 05:30:48,450 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:30:48,450 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:30:48,451 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:30:48,451 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:30:49,953 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 90 for LOIs [2024-11-09 05:30:49,993 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:30:49,995 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:30:55,695 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32609#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (exists ((|v_ULTIMATE.start_main_~a~0#1_144| Int) (|v_ULTIMATE.start_main_~b~0#1_139| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~b~0#1_139| 9223372036854775817)) (<= (+ (* |v_ULTIMATE.start_main_~a~0#1_144| |v_ULTIMATE.start_main_~b~0#1_139|) 1) 0) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_144| 9223372036854775817)) (<= |v_ULTIMATE.start_main_~a~0#1_144| 10) (<= |v_ULTIMATE.start_main_~b~0#1_139| 10))) (<= |ULTIMATE.start_main_~x~0#1| 10))' at error location [2024-11-09 05:30:55,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:30:55,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:30:55,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 05:30:55,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075906624] [2024-11-09 05:30:55,696 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:30:55,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:30:55,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:30:55,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:30:55,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1335, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:30:55,697 INFO L87 Difference]: Start difference. First operand 809 states and 1057 transitions. Second operand has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:30:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:30:56,909 INFO L93 Difference]: Finished difference Result 897 states and 1166 transitions. [2024-11-09 05:30:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:30:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2024-11-09 05:30:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:30:56,913 INFO L225 Difference]: With dead ends: 897 [2024-11-09 05:30:56,913 INFO L226 Difference]: Without dead ends: 889 [2024-11-09 05:30:56,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 66 SyntacticMatches, 10 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 971 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=312, Invalid=1758, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 05:30:56,914 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 180 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:30:56,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 117 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:30:56,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-09 05:30:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 778. [2024-11-09 05:30:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 724 states have (on average 1.2831491712707181) internal successors, (929), 750 states have internal predecessors, (929), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:30:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 979 transitions. [2024-11-09 05:30:57,021 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 979 transitions. Word has length 46 [2024-11-09 05:30:57,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:30:57,022 INFO L471 AbstractCegarLoop]: Abstraction has 778 states and 979 transitions. [2024-11-09 05:30:57,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:30:57,022 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 979 transitions. [2024-11-09 05:30:57,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:30:57,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:30:57,023 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:30:57,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 05:30:57,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:57,224 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:30:57,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:30:57,225 INFO L85 PathProgramCache]: Analyzing trace with hash -90528176, now seen corresponding path program 1 times [2024-11-09 05:30:57,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:30:57,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824570762] [2024-11-09 05:30:57,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:57,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:30:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:30:57,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006596474] [2024-11-09 05:30:57,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:57,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:57,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:30:57,244 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:30:57,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:30:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:30:57,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:30:57,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:30:58,029 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:30:58,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:30:58,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:30:58,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824570762] [2024-11-09 05:30:58,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:30:58,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006596474] [2024-11-09 05:30:58,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006596474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:30:58,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2090984291] [2024-11-09 05:30:58,570 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-09 05:30:58,570 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:30:58,570 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:30:58,571 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:30:58,571 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:30:59,658 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 05:30:59,664 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:30:59,665 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:31:06,345 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34720#(exists ((|v_ULTIMATE.start_main_~a~0#1_153| Int) (|v_ULTIMATE.start_main_~q~0#1_80| Int) (|v_ULTIMATE.start_main_~p~0#1_76| Int) (|v_ULTIMATE.start_main_~b~0#1_147| Int)) (and (<= |v_ULTIMATE.start_main_~a~0#1_153| 10) (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~q~0#1_80| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |v_ULTIMATE.start_main_~b~0#1_147| 10) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (* |v_ULTIMATE.start_main_~a~0#1_153| |v_ULTIMATE.start_main_~b~0#1_147|) 9223372036854775807) (= |v_ULTIMATE.start_main_~p~0#1_76| 1) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~a~0#1_153| |v_ULTIMATE.start_main_~b~0#1_147|) |v_ULTIMATE.start_main_~q~0#1_80|))))' at error location [2024-11-09 05:31:06,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:31:06,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:31:06,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 05:31:06,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079646944] [2024-11-09 05:31:06,346 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:31:06,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:31:06,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:06,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:31:06,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1266, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:31:06,347 INFO L87 Difference]: Start difference. First operand 778 states and 979 transitions. Second operand has 9 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:31:07,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:07,391 INFO L93 Difference]: Finished difference Result 807 states and 1012 transitions. [2024-11-09 05:31:07,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:31:07,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2024-11-09 05:31:07,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:07,393 INFO L225 Difference]: With dead ends: 807 [2024-11-09 05:31:07,393 INFO L226 Difference]: Without dead ends: 806 [2024-11-09 05:31:07,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=363, Invalid=1707, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 05:31:07,395 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 148 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:07,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 121 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:31:07,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-09 05:31:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 785. [2024-11-09 05:31:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 731 states have (on average 1.280437756497948) internal successors, (936), 757 states have internal predecessors, (936), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:31:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 986 transitions. [2024-11-09 05:31:07,496 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 986 transitions. Word has length 47 [2024-11-09 05:31:07,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:07,497 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 986 transitions. [2024-11-09 05:31:07,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:31:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 986 transitions. [2024-11-09 05:31:07,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:31:07,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:07,499 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:07,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 05:31:07,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-09 05:31:07,700 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:31:07,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:07,701 INFO L85 PathProgramCache]: Analyzing trace with hash 791815314, now seen corresponding path program 1 times [2024-11-09 05:31:07,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:07,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997103454] [2024-11-09 05:31:07,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:07,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:31:07,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453201110] [2024-11-09 05:31:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:07,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:07,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:07,749 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:07,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 05:31:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:07,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 05:31:07,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:31:15,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:31:17,295 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:31:17,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:17,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997103454] [2024-11-09 05:31:17,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:31:17,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453201110] [2024-11-09 05:31:17,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453201110] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:31:17,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:31:17,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-11-09 05:31:17,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384231596] [2024-11-09 05:31:17,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:17,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:31:17,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:17,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:31:17,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=244, Unknown=1, NotChecked=0, Total=306 [2024-11-09 05:31:17,297 INFO L87 Difference]: Start difference. First operand 785 states and 986 transitions. Second operand has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:31:19,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:19,668 INFO L93 Difference]: Finished difference Result 995 states and 1260 transitions. [2024-11-09 05:31:19,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:31:19,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2024-11-09 05:31:19,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:19,671 INFO L225 Difference]: With dead ends: 995 [2024-11-09 05:31:19,671 INFO L226 Difference]: Without dead ends: 994 [2024-11-09 05:31:19,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=61, Invalid=244, Unknown=1, NotChecked=0, Total=306 [2024-11-09 05:31:19,672 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 55 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:19,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 147 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 05:31:19,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-09 05:31:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 784. [2024-11-09 05:31:19,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 731 states have (on average 1.2694938440492476) internal successors, (928), 756 states have internal predecessors, (928), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:31:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 978 transitions. [2024-11-09 05:31:19,793 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 978 transitions. Word has length 51 [2024-11-09 05:31:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:19,793 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 978 transitions. [2024-11-09 05:31:19,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:31:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 978 transitions. [2024-11-09 05:31:19,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 05:31:19,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:19,795 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:19,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 05:31:19,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:19,999 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:31:19,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:19,999 INFO L85 PathProgramCache]: Analyzing trace with hash -808406256, now seen corresponding path program 1 times [2024-11-09 05:31:19,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:19,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414595843] [2024-11-09 05:31:20,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:20,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:31:20,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415724716] [2024-11-09 05:31:20,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:20,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:20,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:20,026 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:20,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 05:31:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:20,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 05:31:20,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:27,474 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:31:27,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:31:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:31:29,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:29,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414595843] [2024-11-09 05:31:29,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:31:29,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415724716] [2024-11-09 05:31:29,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415724716] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:31:29,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:31:29,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-09 05:31:29,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721143956] [2024-11-09 05:31:29,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:29,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:31:29,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:31:29,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:31:29,101 INFO L87 Difference]: Start difference. First operand 784 states and 978 transitions. Second operand has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:31:31,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:31,765 INFO L93 Difference]: Finished difference Result 969 states and 1225 transitions. [2024-11-09 05:31:31,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:31:31,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2024-11-09 05:31:31,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:31,768 INFO L225 Difference]: With dead ends: 969 [2024-11-09 05:31:31,769 INFO L226 Difference]: Without dead ends: 968 [2024-11-09 05:31:31,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:31:31,769 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 48 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:31,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 133 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 05:31:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-11-09 05:31:31,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 783. [2024-11-09 05:31:31,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 731 states have (on average 1.2626538987688098) internal successors, (923), 755 states have internal predecessors, (923), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:31:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 973 transitions. [2024-11-09 05:31:31,858 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 973 transitions. Word has length 52 [2024-11-09 05:31:31,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:31,859 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 973 transitions. [2024-11-09 05:31:31,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:31:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 973 transitions. [2024-11-09 05:31:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 05:31:31,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:31,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:31,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 05:31:32,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:32,064 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:31:32,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:32,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1207430431, now seen corresponding path program 1 times [2024-11-09 05:31:32,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:32,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104117205] [2024-11-09 05:31:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:32,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:32,156 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:31:32,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:32,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104117205] [2024-11-09 05:31:32,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104117205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:31:32,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004439870] [2024-11-09 05:31:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:32,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:32,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:32,158 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:32,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 05:31:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:32,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:31:32,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:31:32,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:31:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:31:32,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004439870] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:31:32,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [220731100] [2024-11-09 05:31:32,391 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2024-11-09 05:31:32,391 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:31:32,391 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:31:32,391 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:31:32,392 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:31:34,119 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 32 for LOIs [2024-11-09 05:31:34,126 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:31:34,127 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:31:48,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [220731100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:48,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:31:48,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [3, 3, 3] total 27 [2024-11-09 05:31:48,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479454014] [2024-11-09 05:31:48,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:48,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:31:48,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:48,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:31:48,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=610, Unknown=1, NotChecked=0, Total=756 [2024-11-09 05:31:48,920 INFO L87 Difference]: Start difference. First operand 783 states and 973 transitions. Second operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:31:52,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:31:57,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:31:58,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:32:00,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:32:08,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:32:11,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:32:18,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:18,790 INFO L93 Difference]: Finished difference Result 793 states and 980 transitions. [2024-11-09 05:32:18,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 05:32:18,791 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2024-11-09 05:32:18,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:18,793 INFO L225 Difference]: With dead ends: 793 [2024-11-09 05:32:18,793 INFO L226 Difference]: Without dead ends: 791 [2024-11-09 05:32:18,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 122 SyntacticMatches, 9 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=297, Invalid=1034, Unknown=1, NotChecked=0, Total=1332 [2024-11-09 05:32:18,795 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 566 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:18,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 170 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 562 Invalid, 2 Unknown, 0 Unchecked, 17.7s Time] [2024-11-09 05:32:18,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-09 05:32:18,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 772. [2024-11-09 05:32:18,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 720 states have (on average 1.2638888888888888) internal successors, (910), 744 states have internal predecessors, (910), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:32:18,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 960 transitions. [2024-11-09 05:32:18,904 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 960 transitions. Word has length 52 [2024-11-09 05:32:18,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:18,904 INFO L471 AbstractCegarLoop]: Abstraction has 772 states and 960 transitions. [2024-11-09 05:32:18,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:32:18,905 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 960 transitions. [2024-11-09 05:32:18,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:32:18,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:18,906 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:32:18,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 05:32:19,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-09 05:32:19,107 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:32:19,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:19,107 INFO L85 PathProgramCache]: Analyzing trace with hash 245377316, now seen corresponding path program 1 times [2024-11-09 05:32:19,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:19,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207248482] [2024-11-09 05:32:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:32:19,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117731269] [2024-11-09 05:32:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:19,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:19,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:19,139 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:19,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 05:32:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:19,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 05:32:19,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:19,956 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:32:19,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:32:32,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:32,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207248482] [2024-11-09 05:32:32,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:32:32,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117731269] [2024-11-09 05:32:32,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117731269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:32:32,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1532313199] [2024-11-09 05:32:32,075 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 05:32:32,076 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:32:32,076 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:32:32,076 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:32:32,076 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:32:33,850 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 32 for LOIs [2024-11-09 05:32:33,856 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:32:33,858 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:32:53,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1532313199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:32:53,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:32:53,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [12, 12] total 52 [2024-11-09 05:32:53,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511814987] [2024-11-09 05:32:53,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:32:53,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 05:32:53,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:53,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 05:32:53,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=548, Invalid=2205, Unknown=3, NotChecked=0, Total=2756 [2024-11-09 05:32:53,700 INFO L87 Difference]: Start difference. First operand 772 states and 960 transitions. Second operand has 32 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:33:13,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:33:22,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:33:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:33:24,822 INFO L93 Difference]: Finished difference Result 780 states and 967 transitions. [2024-11-09 05:33:24,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 05:33:24,823 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 58 [2024-11-09 05:33:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:33:24,825 INFO L225 Difference]: With dead ends: 780 [2024-11-09 05:33:24,825 INFO L226 Difference]: Without dead ends: 779 [2024-11-09 05:33:24,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 111 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1632 ImplicationChecksByTransitivity, 41.5s TimeCoverageRelationStatistics Valid=982, Invalid=3571, Unknown=3, NotChecked=0, Total=4556 [2024-11-09 05:33:24,827 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 517 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:33:24,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 166 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1095 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2024-11-09 05:33:24,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-09 05:33:24,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 772. [2024-11-09 05:33:24,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 720 states have (on average 1.2625) internal successors, (909), 744 states have internal predecessors, (909), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 05:33:24,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 959 transitions. [2024-11-09 05:33:24,898 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 959 transitions. Word has length 58 [2024-11-09 05:33:24,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:33:24,898 INFO L471 AbstractCegarLoop]: Abstraction has 772 states and 959 transitions. [2024-11-09 05:33:24,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:33:24,898 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 959 transitions. [2024-11-09 05:33:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:33:24,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:33:24,900 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:33:24,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 05:33:25,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-09 05:33:25,101 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:33:25,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:33:25,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1409640893, now seen corresponding path program 1 times [2024-11-09 05:33:25,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:33:25,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758402949] [2024-11-09 05:33:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:25,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:33:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:33:25,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1267740831] [2024-11-09 05:33:25,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:33:25,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:33:25,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:33:25,135 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:33:25,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 05:33:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:33:25,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 05:33:25,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:33:28,400 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:33:28,400 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:33:30,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:33:30,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758402949] [2024-11-09 05:33:30,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:33:30,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267740831] [2024-11-09 05:33:30,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267740831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:33:30,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [905986665] [2024-11-09 05:33:30,942 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-09 05:33:30,942 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:33:30,942 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:33:30,942 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:33:30,942 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:33:32,340 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:33:32,345 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:33:32,346 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:33:54,380 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '45266#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= |ULTIMATE.start_main_~x~0#1| 10) (exists ((|v_ULTIMATE.start_main_~b~0#1_184| Int) (|v_ULTIMATE.start_main_~p~0#1_110| Int) (|v_ULTIMATE.start_main_~a~0#1_196| Int)) (and (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_196| |v_ULTIMATE.start_main_~b~0#1_184|))) (<= (* |v_ULTIMATE.start_main_~a~0#1_196| |v_ULTIMATE.start_main_~b~0#1_184|) 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_196| |v_ULTIMATE.start_main_~b~0#1_184| |v_ULTIMATE.start_main_~p~0#1_110|)))))' at error location [2024-11-09 05:33:54,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:33:54,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:33:54,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-09 05:33:54,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827948216] [2024-11-09 05:33:54,381 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:33:54,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 05:33:54,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:33:54,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 05:33:54,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2162, Unknown=1, NotChecked=0, Total=2450 [2024-11-09 05:33:54,383 INFO L87 Difference]: Start difference. First operand 772 states and 959 transitions. Second operand has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 05:33:56,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:33:59,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:34:01,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:34:12,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:34:15,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:34:15,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:34:15,472 INFO L93 Difference]: Finished difference Result 834 states and 1032 transitions. [2024-11-09 05:34:15,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 05:34:15,473 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2024-11-09 05:34:15,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:34:15,477 INFO L225 Difference]: With dead ends: 834 [2024-11-09 05:34:15,477 INFO L226 Difference]: Without dead ends: 833 [2024-11-09 05:34:15,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 76 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1064 ImplicationChecksByTransitivity, 29.2s TimeCoverageRelationStatistics Valid=350, Invalid=2729, Unknown=1, NotChecked=0, Total=3080 [2024-11-09 05:34:15,479 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 164 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 10 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:34:15,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 205 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1147 Invalid, 5 Unknown, 0 Unchecked, 16.5s Time] [2024-11-09 05:34:15,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-09 05:34:15,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 816. [2024-11-09 05:34:15,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 762 states have (on average 1.2585301837270342) internal successors, (959), 786 states have internal predecessors, (959), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 05:34:15,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1013 transitions. [2024-11-09 05:34:15,564 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1013 transitions. Word has length 58 [2024-11-09 05:34:15,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:34:15,564 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1013 transitions. [2024-11-09 05:34:15,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 05:34:15,564 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1013 transitions. [2024-11-09 05:34:15,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:34:15,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:34:15,565 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:34:15,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 05:34:15,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 05:34:15,766 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:34:15,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:34:15,766 INFO L85 PathProgramCache]: Analyzing trace with hash 341877568, now seen corresponding path program 1 times [2024-11-09 05:34:15,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:34:15,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974242445] [2024-11-09 05:34:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:15,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:34:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:34:15,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100094778] [2024-11-09 05:34:15,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:15,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:34:15,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:34:15,788 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:34:15,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 05:34:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:34:15,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:34:15,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:34:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:34:16,085 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:34:16,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:34:16,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974242445] [2024-11-09 05:34:16,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:34:16,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100094778] [2024-11-09 05:34:16,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100094778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:34:16,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [95193586] [2024-11-09 05:34:16,443 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-09 05:34:16,443 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:34:16,443 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:34:16,443 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:34:16,443 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:34:17,461 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:34:17,466 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:34:17,468 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:34:30,863 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '47309#(exists ((|v_ULTIMATE.start_main_~b~0#1_190| Int) (|v_ULTIMATE.start_main_~a~0#1_206| Int) (|v_ULTIMATE.start_main_~p~0#1_116| Int) (|v_ULTIMATE.start_main_~q~0#1_103| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= (* |v_ULTIMATE.start_main_~a~0#1_206| |v_ULTIMATE.start_main_~b~0#1_190| |v_ULTIMATE.start_main_~p~0#1_116|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (* |v_ULTIMATE.start_main_~a~0#1_206| |v_ULTIMATE.start_main_~b~0#1_190|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_206| |v_ULTIMATE.start_main_~b~0#1_190| |v_ULTIMATE.start_main_~p~0#1_116|))) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_206| |v_ULTIMATE.start_main_~b~0#1_190|))) (<= (+ 9223372036854775809 |v_ULTIMATE.start_main_~q~0#1_103| (* |v_ULTIMATE.start_main_~a~0#1_206| |v_ULTIMATE.start_main_~b~0#1_190| |v_ULTIMATE.start_main_~p~0#1_116|)) 0)))' at error location [2024-11-09 05:34:30,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:34:30,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:34:30,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:34:30,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071804615] [2024-11-09 05:34:30,863 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:34:30,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:34:30,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:34:30,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:34:30,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1259, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 05:34:30,866 INFO L87 Difference]: Start difference. First operand 816 states and 1013 transitions. Second operand has 7 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 05:34:32,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:34:32,575 INFO L93 Difference]: Finished difference Result 883 states and 1092 transitions. [2024-11-09 05:34:32,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:34:32,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 59 [2024-11-09 05:34:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:34:32,581 INFO L225 Difference]: With dead ends: 883 [2024-11-09 05:34:32,582 INFO L226 Difference]: Without dead ends: 882 [2024-11-09 05:34:32,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=261, Invalid=1631, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 05:34:32,583 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 175 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:34:32,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 196 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:34:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-09 05:34:32,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 834. [2024-11-09 05:34:32,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 779 states have (on average 1.258023106546855) internal successors, (980), 803 states have internal predecessors, (980), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 05:34:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1036 transitions. [2024-11-09 05:34:32,720 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1036 transitions. Word has length 59 [2024-11-09 05:34:32,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:34:32,721 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1036 transitions. [2024-11-09 05:34:32,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 05:34:32,721 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1036 transitions. [2024-11-09 05:34:32,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:34:32,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:34:32,722 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:34:32,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 05:34:32,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 05:34:32,925 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:34:32,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:34:32,926 INFO L85 PathProgramCache]: Analyzing trace with hash 229344095, now seen corresponding path program 1 times [2024-11-09 05:34:32,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:34:32,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678374525] [2024-11-09 05:34:32,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:32,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:34:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:34:32,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076850220] [2024-11-09 05:34:32,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:32,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:34:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:34:32,954 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:34:32,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 05:34:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:34:33,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 05:34:33,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:34:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:34:42,264 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:34:47,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:34:47,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678374525] [2024-11-09 05:34:47,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:34:47,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076850220] [2024-11-09 05:34:47,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076850220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:34:47,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1747871877] [2024-11-09 05:34:47,435 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-09 05:34:47,435 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:34:47,435 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:34:47,436 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:34:47,436 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:34:48,650 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:34:48,656 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:34:48,658 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:35:09,347 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49435#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (exists ((|v_ULTIMATE.start_main_~a~0#1_214| Int) (|v_ULTIMATE.start_main_~b~0#1_203| Int) (|v_ULTIMATE.start_main_~p~0#1_124| Int)) (and (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_214| |v_ULTIMATE.start_main_~b~0#1_203|) 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_214| |v_ULTIMATE.start_main_~b~0#1_203| |v_ULTIMATE.start_main_~p~0#1_124|)) (<= (* |v_ULTIMATE.start_main_~a~0#1_214| |v_ULTIMATE.start_main_~b~0#1_203|) 9223372036854775807))) (<= |ULTIMATE.start_main_~x~0#1| 10))' at error location [2024-11-09 05:35:09,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:35:09,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:35:09,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-09 05:35:09,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455650620] [2024-11-09 05:35:09,348 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:35:09,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 05:35:09,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:09,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 05:35:09,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=2310, Unknown=7, NotChecked=0, Total=2652 [2024-11-09 05:35:09,349 INFO L87 Difference]: Start difference. First operand 834 states and 1036 transitions. Second operand has 17 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:35:12,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:14,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:16,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:18,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:19,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:21,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:22,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:25,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:27,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:31,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:38,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:40,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:42,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:44,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:45,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:47,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:50,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:52,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:54,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:56,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:57,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:35:59,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:01,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:07,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:08,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:10,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:11,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:13,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:15,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:16,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:19,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:21,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:23,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:24,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:36:24,489 INFO L93 Difference]: Finished difference Result 888 states and 1099 transitions. [2024-11-09 05:36:24,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 05:36:24,489 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 59 [2024-11-09 05:36:24,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:36:24,491 INFO L225 Difference]: With dead ends: 888 [2024-11-09 05:36:24,491 INFO L226 Difference]: Without dead ends: 887 [2024-11-09 05:36:24,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 78 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1224 ImplicationChecksByTransitivity, 38.7s TimeCoverageRelationStatistics Valid=436, Invalid=3214, Unknown=10, NotChecked=0, Total=3660 [2024-11-09 05:36:24,493 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 236 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 14 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:36:24,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 283 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1875 Invalid, 34 Unknown, 0 Unchecked, 69.0s Time] [2024-11-09 05:36:24,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-09 05:36:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 861. [2024-11-09 05:36:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 805 states have (on average 1.2596273291925466) internal successors, (1014), 829 states have internal predecessors, (1014), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-09 05:36:24,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1072 transitions. [2024-11-09 05:36:24,579 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1072 transitions. Word has length 59 [2024-11-09 05:36:24,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:36:24,579 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1072 transitions. [2024-11-09 05:36:24,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:36:24,579 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1072 transitions. [2024-11-09 05:36:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:36:24,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:36:24,580 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:36:24,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-09 05:36:24,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 05:36:24,781 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:36:24,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:36:24,781 INFO L85 PathProgramCache]: Analyzing trace with hash 749194778, now seen corresponding path program 2 times [2024-11-09 05:36:24,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:36:24,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712051915] [2024-11-09 05:36:24,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:24,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:36:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:36:24,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754407783] [2024-11-09 05:36:24,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:36:24,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:36:24,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:36:24,809 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:36:24,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 05:36:24,864 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:36:24,865 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:36:24,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:36:24,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:36:28,353 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 05:36:28,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:36:29,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:36:29,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712051915] [2024-11-09 05:36:29,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:36:29,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754407783] [2024-11-09 05:36:29,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754407783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:36:29,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [184140341] [2024-11-09 05:36:29,837 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-09 05:36:29,837 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:36:29,837 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:36:29,837 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:36:29,837 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:36:31,120 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:36:31,127 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:36:31,128 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:36:45,200 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '51605#(exists ((|v_ULTIMATE.start_main_~q~0#1_119| Int) (|v_ULTIMATE.start_main_~p~0#1_131| Int) (|v_ULTIMATE.start_main_~a~0#1_227| Int) (|v_ULTIMATE.start_main_~b~0#1_210| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= (* |v_ULTIMATE.start_main_~a~0#1_227| |v_ULTIMATE.start_main_~b~0#1_210|) 9223372036854775807) (<= (+ 9223372036854775809 |v_ULTIMATE.start_main_~q~0#1_119| (* |v_ULTIMATE.start_main_~a~0#1_227| |v_ULTIMATE.start_main_~b~0#1_210| |v_ULTIMATE.start_main_~p~0#1_131|)) 0) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_227| |v_ULTIMATE.start_main_~b~0#1_210|))) (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_227| |v_ULTIMATE.start_main_~b~0#1_210| |v_ULTIMATE.start_main_~p~0#1_131|) 9223372036854775808)) (<= (* |v_ULTIMATE.start_main_~a~0#1_227| |v_ULTIMATE.start_main_~b~0#1_210| |v_ULTIMATE.start_main_~p~0#1_131|) 9223372036854775807)))' at error location [2024-11-09 05:36:45,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:36:45,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:36:45,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 05:36:45,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14720533] [2024-11-09 05:36:45,201 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:36:45,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:36:45,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:36:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:36:45,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=1985, Unknown=1, NotChecked=0, Total=2352 [2024-11-09 05:36:45,202 INFO L87 Difference]: Start difference. First operand 861 states and 1072 transitions. Second operand has 12 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 05:36:51,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:53,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:56,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:36:58,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:37:01,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:37:03,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:37:06,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:37:08,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:37:10,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:37:12,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:37:12,124 INFO L93 Difference]: Finished difference Result 898 states and 1116 transitions. [2024-11-09 05:37:12,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:37:12,125 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 59 [2024-11-09 05:37:12,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:37:12,128 INFO L225 Difference]: With dead ends: 898 [2024-11-09 05:37:12,128 INFO L226 Difference]: Without dead ends: 897 [2024-11-09 05:37:12,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 81 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1115 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=454, Invalid=2513, Unknown=3, NotChecked=0, Total=2970 [2024-11-09 05:37:12,129 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 172 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 12 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:37:12,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 220 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 652 Invalid, 8 Unknown, 0 Unchecked, 21.5s Time] [2024-11-09 05:37:12,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-09 05:37:12,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 873. [2024-11-09 05:37:12,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 817 states have (on average 1.2570379436964505) internal successors, (1027), 841 states have internal predecessors, (1027), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-09 05:37:12,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1085 transitions. [2024-11-09 05:37:12,202 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1085 transitions. Word has length 59 [2024-11-09 05:37:12,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:12,202 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1085 transitions. [2024-11-09 05:37:12,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 05:37:12,203 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1085 transitions. [2024-11-09 05:37:12,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 05:37:12,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:12,204 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:37:12,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-09 05:37:12,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 05:37:12,404 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:37:12,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash -369640712, now seen corresponding path program 1 times [2024-11-09 05:37:12,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:12,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066188012] [2024-11-09 05:37:12,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:12,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:37:12,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69674930] [2024-11-09 05:37:12,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:12,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:37:12,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:37:12,424 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:37:12,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 05:37:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:12,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:37:12,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:37:12,786 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:37:12,786 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:37:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:37:13,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:37:13,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066188012] [2024-11-09 05:37:13,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:37:13,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69674930] [2024-11-09 05:37:13,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69674930] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:37:13,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1140082475] [2024-11-09 05:37:13,096 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-09 05:37:13,096 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:37:13,096 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:37:13,097 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:37:13,097 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:37:14,498 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:37:14,503 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:37:14,505 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:37:25,768 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53920#(exists ((|v_ULTIMATE.start_main_~a~0#1_234| Int) (|v_ULTIMATE.start_main_~p~0#1_138| Int) (|v_ULTIMATE.start_main_~b~0#1_222| Int) (|v_ULTIMATE.start_main_~q~0#1_127| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= (* |v_ULTIMATE.start_main_~a~0#1_234| |v_ULTIMATE.start_main_~b~0#1_222| |v_ULTIMATE.start_main_~p~0#1_138|) 9223372036854775807) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_234| |v_ULTIMATE.start_main_~b~0#1_222|) 9223372036854775808)) (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_234| |v_ULTIMATE.start_main_~b~0#1_222| |v_ULTIMATE.start_main_~p~0#1_138|) 9223372036854775808)) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= (+ (* |v_ULTIMATE.start_main_~a~0#1_234| |v_ULTIMATE.start_main_~b~0#1_222| |v_ULTIMATE.start_main_~p~0#1_138|) 9223372036854775809 |v_ULTIMATE.start_main_~q~0#1_127|) 0) (<= (* |v_ULTIMATE.start_main_~a~0#1_234| |v_ULTIMATE.start_main_~b~0#1_222|) 9223372036854775807)))' at error location [2024-11-09 05:37:25,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:37:25,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:37:25,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-09 05:37:25,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764774558] [2024-11-09 05:37:25,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:37:25,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:37:25,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:37:25,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:37:25,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1375, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 05:37:25,770 INFO L87 Difference]: Start difference. First operand 873 states and 1085 transitions. Second operand has 10 states, 8 states have (on average 8.625) internal successors, (69), 10 states have internal predecessors, (69), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-09 05:37:28,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:37:28,989 INFO L93 Difference]: Finished difference Result 1114 states and 1390 transitions. [2024-11-09 05:37:28,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:37:28,990 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.625) internal successors, (69), 10 states have internal predecessors, (69), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 60 [2024-11-09 05:37:28,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:37:28,993 INFO L225 Difference]: With dead ends: 1114 [2024-11-09 05:37:28,993 INFO L226 Difference]: Without dead ends: 1112 [2024-11-09 05:37:28,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 134 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=337, Invalid=1919, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 05:37:28,994 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 288 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:37:28,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 157 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 05:37:28,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-11-09 05:37:29,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 941. [2024-11-09 05:37:29,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 881 states have (on average 1.2542565266742338) internal successors, (1105), 905 states have internal predecessors, (1105), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-09 05:37:29,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1171 transitions. [2024-11-09 05:37:29,164 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1171 transitions. Word has length 60 [2024-11-09 05:37:29,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:29,164 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1171 transitions. [2024-11-09 05:37:29,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.625) internal successors, (69), 10 states have internal predecessors, (69), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-09 05:37:29,165 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1171 transitions. [2024-11-09 05:37:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 05:37:29,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:29,166 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:37:29,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-09 05:37:29,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:37:29,367 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 05:37:29,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:29,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2008270073, now seen corresponding path program 1 times [2024-11-09 05:37:29,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:29,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912111725] [2024-11-09 05:37:29,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:29,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:37:29,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970641208] [2024-11-09 05:37:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:29,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:37:29,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:37:29,396 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:37:29,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6f97625-6851-4455-b561-152b654502c0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 05:37:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:29,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 05:37:29,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:37:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:37:31,566 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:38:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 05:38:52,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:38:52,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912111725] [2024-11-09 05:38:52,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:38:52,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970641208] [2024-11-09 05:38:52,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970641208] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:38:52,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1568226271] [2024-11-09 05:38:52,399 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-09 05:38:52,399 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:38:52,400 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:38:52,400 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:38:52,400 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:38:53,814 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:38:53,819 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:38:53,821 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:39:53,807 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '56551#(exists ((|v_ULTIMATE.start_main_~p~0#1_150| Int) (|v_ULTIMATE.start_main_~q~0#1_139| Int) (|v_ULTIMATE.start_main_~a~0#1_252| Int) (|v_ULTIMATE.start_main_~b~0#1_234| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 10) (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_252| |v_ULTIMATE.start_main_~b~0#1_234|))) (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_252| |v_ULTIMATE.start_main_~b~0#1_234| |v_ULTIMATE.start_main_~p~0#1_150|) 9223372036854775808)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~q~0#1_139| (* |v_ULTIMATE.start_main_~a~0#1_252| |v_ULTIMATE.start_main_~b~0#1_234| |v_ULTIMATE.start_main_~p~0#1_150|))) (<= (* |v_ULTIMATE.start_main_~a~0#1_252| |v_ULTIMATE.start_main_~b~0#1_234| |v_ULTIMATE.start_main_~p~0#1_150|) 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~a~0#1_252| |v_ULTIMATE.start_main_~b~0#1_234|) 9223372036854775807)))' at error location [2024-11-09 05:39:53,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:39:53,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:39:53,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-09 05:39:53,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895686057] [2024-11-09 05:39:53,808 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:39:53,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 05:39:53,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:53,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 05:39:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=420, Invalid=2548, Unknown=2, NotChecked=0, Total=2970 [2024-11-09 05:39:53,810 INFO L87 Difference]: Start difference. First operand 941 states and 1171 transitions. Second operand has 25 states, 23 states have (on average 3.9565217391304346) internal successors, (91), 25 states have internal predecessors, (91), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-09 05:42:14,111 WARN L286 SmtUtils]: Spent 2.27m on a formula simplification. DAG size of input: 151 DAG size of output: 133 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:42:16,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:42:18,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []