./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.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_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/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_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/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_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/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 387b23f31d6d0897ac5c9cf97636f8e4c9d1a5fe20740b906ac4716e108638d5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:42:59,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:42:59,510 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:42:59,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:42:59,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:42:59,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:42:59,567 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:42:59,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:42:59,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:42:59,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:42:59,572 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:42:59,573 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:42:59,574 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:42:59,574 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:42:59,574 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:42:59,575 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:42:59,575 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:42:59,579 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:42:59,580 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:42:59,581 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:42:59,581 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:42:59,582 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:42:59,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:42:59,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:42:59,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:42:59,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:42:59,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:42:59,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:42:59,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:42:59,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:42:59,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:42:59,591 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:42:59,591 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:42:59,591 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:42:59,592 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:42:59,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:42:59,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:42:59,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:42:59,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:42:59,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:42:59,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:42:59,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:42:59,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:42:59,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:42:59,601 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:42:59,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:42:59,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:42:59,602 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:42:59,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:42:59,603 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_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 387b23f31d6d0897ac5c9cf97636f8e4c9d1a5fe20740b906ac4716e108638d5 [2024-11-09 05:42:59,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:43:00,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:43:00,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:43:00,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:43:00,034 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:43:00,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c Unable to find full path for "g++" [2024-11-09 05:43:02,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:43:03,067 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:43:03,068 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c [2024-11-09 05:43:03,078 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/data/634317355/42558a0cde2741558a8d8b518099a40c/FLAG817b0c715 [2024-11-09 05:43:03,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/data/634317355/42558a0cde2741558a8d8b518099a40c [2024-11-09 05:43:03,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:43:03,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:43:03,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:43:03,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:43:03,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:43:03,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73369292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03, skipping insertion in model container [2024-11-09 05:43:03,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:43:03,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:43:03,421 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:43:03,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:43:03,468 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:43:03,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03 WrapperNode [2024-11-09 05:43:03,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:43:03,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:43:03,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:43:03,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:43:03,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,519 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2024-11-09 05:43:03,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:43:03,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:43:03,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:43:03,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:43:03,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:43:03,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:43:03,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:43:03,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:43:03,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (1/1) ... [2024-11-09 05:43:03,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:43:03,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:43:03,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:43:03,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:43:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:43:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:43:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:43:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:43:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:43:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:43:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:43:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:43:03,703 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:43:03,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:43:03,911 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 05:43:03,911 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:43:03,969 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:43:03,969 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:43:03,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:43:03 BoogieIcfgContainer [2024-11-09 05:43:03,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:43:03,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:43:03,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:43:03,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:43:03,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:43:03" (1/3) ... [2024-11-09 05:43:03,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fbee50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:43:03, skipping insertion in model container [2024-11-09 05:43:03,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:43:03" (2/3) ... [2024-11-09 05:43:03,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fbee50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:43:03, skipping insertion in model container [2024-11-09 05:43:03,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:43:03" (3/3) ... [2024-11-09 05:43:03,989 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound1.c [2024-11-09 05:43:04,012 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:43:04,014 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 05:43:04,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:43:04,087 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;@4fac9ff4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:43:04,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 05:43:04,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 16 states have internal predecessors, (19), 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 05:43:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 05:43:04,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:43:04,100 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:43:04,101 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 05:43:04,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:43:04,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1729908641, now seen corresponding path program 1 times [2024-11-09 05:43:04,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:43:04,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178688933] [2024-11-09 05:43:04,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:04,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:04,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:43:04,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:04,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178688933] [2024-11-09 05:43:04,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178688933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:04,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:43:04,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:43:04,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032872028] [2024-11-09 05:43:04,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:04,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:43:04,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:04,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:43:04,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:43:04,532 INFO L87 Difference]: Start difference. First operand has 23 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 16 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:43:04,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:43:04,653 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2024-11-09 05:43:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:43:04,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-09 05:43:04,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:43:04,668 INFO L225 Difference]: With dead ends: 38 [2024-11-09 05:43:04,668 INFO L226 Difference]: Without dead ends: 24 [2024-11-09 05:43:04,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:43:04,677 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:43:04,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 47 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:43:04,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-09 05:43:04,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-09 05:43:04,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:43:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2024-11-09 05:43:04,739 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 10 [2024-11-09 05:43:04,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:43:04,742 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2024-11-09 05:43:04,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:43:04,743 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-11-09 05:43:04,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 05:43:04,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:43:04,745 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:43:04,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:43:04,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 05:43:04,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:43:04,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1398754414, now seen corresponding path program 1 times [2024-11-09 05:43:04,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:43:04,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182853592] [2024-11-09 05:43:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:04,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:05,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:43:05,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:05,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182853592] [2024-11-09 05:43:05,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182853592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:43:05,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038162100] [2024-11-09 05:43:05,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:05,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:43:05,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:43:05,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:43:05,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:43:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:05,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:43:05,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:43:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:43:05,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:43:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:43:05,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038162100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:43:05,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1920806594] [2024-11-09 05:43:05,446 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2024-11-09 05:43:05,446 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:43:05,452 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:43:05,461 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:43:05,462 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:43:06,562 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2024-11-09 05:43:06,574 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 64 for LOIs [2024-11-09 05:43:06,633 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:43:08,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1920806594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:08,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:43:08,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [3, 3, 3] total 15 [2024-11-09 05:43:08,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989057085] [2024-11-09 05:43:08,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:08,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:43:08,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:08,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:43:08,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:43:08,245 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:43:08,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:43:08,630 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2024-11-09 05:43:08,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:43:08,631 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 17 [2024-11-09 05:43:08,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:43:08,632 INFO L225 Difference]: With dead ends: 32 [2024-11-09 05:43:08,632 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 05:43:08,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:43:08,635 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:43:08,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 37 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:43:08,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 05:43:08,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-09 05:43:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:43:08,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2024-11-09 05:43:08,667 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 17 [2024-11-09 05:43:08,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:43:08,667 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2024-11-09 05:43:08,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:43:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2024-11-09 05:43:08,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 05:43:08,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:43:08,672 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:43:08,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:43:08,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:43:08,878 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 05:43:08,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:43:08,880 INFO L85 PathProgramCache]: Analyzing trace with hash -411712531, now seen corresponding path program 1 times [2024-11-09 05:43:08,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:43:08,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216809071] [2024-11-09 05:43:08,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:08,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:43:09,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:09,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216809071] [2024-11-09 05:43:09,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216809071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:43:09,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196520353] [2024-11-09 05:43:09,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:09,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:43:09,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:43:09,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:43:09,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:43:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:09,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:43:09,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:43:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:43:09,353 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:43:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196520353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:09,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:43:09,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 05:43:09,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308337080] [2024-11-09 05:43:09,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:09,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:43:09,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:09,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:43:09,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:43:09,358 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:43:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:43:09,413 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2024-11-09 05:43:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:43:09,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2024-11-09 05:43:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:43:09,416 INFO L225 Difference]: With dead ends: 28 [2024-11-09 05:43:09,416 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 05:43:09,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:43:09,418 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:43:09,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 24 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:43:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 05:43:09,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 05:43:09,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:43:09,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2024-11-09 05:43:09,435 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 18 [2024-11-09 05:43:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:43:09,436 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2024-11-09 05:43:09,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:43:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2024-11-09 05:43:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 05:43:09,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:43:09,438 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:43:09,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:43:09,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:43:09,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 05:43:09,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:43:09,644 INFO L85 PathProgramCache]: Analyzing trace with hash 121813470, now seen corresponding path program 1 times [2024-11-09 05:43:09,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:43:09,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111628507] [2024-11-09 05:43:09,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:09,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:43:09,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:09,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111628507] [2024-11-09 05:43:09,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111628507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:43:09,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820762759] [2024-11-09 05:43:09,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:09,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:43:09,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:43:09,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:43:09,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:43:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:09,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:43:09,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:43:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:43:09,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:43:09,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820762759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:09,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:43:09,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-09 05:43:09,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136542935] [2024-11-09 05:43:09,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:09,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:43:09,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:09,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:43:09,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:43:09,959 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:43:10,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:43:10,034 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2024-11-09 05:43:10,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:43:10,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-11-09 05:43:10,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:43:10,037 INFO L225 Difference]: With dead ends: 31 [2024-11-09 05:43:10,037 INFO L226 Difference]: Without dead ends: 30 [2024-11-09 05:43:10,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:43:10,039 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:43:10,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:43:10,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-09 05:43:10,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2024-11-09 05:43:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:43:10,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-09 05:43:10,062 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 19 [2024-11-09 05:43:10,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:43:10,063 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-09 05:43:10,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:43:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-09 05:43:10,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:43:10,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:43:10,067 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:43:10,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:43:10,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:43:10,276 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 05:43:10,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:43:10,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1098629163, now seen corresponding path program 1 times [2024-11-09 05:43:10,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:43:10,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937765552] [2024-11-09 05:43:10,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:10,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 05:43:10,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:10,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937765552] [2024-11-09 05:43:10,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937765552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:43:10,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073276934] [2024-11-09 05:43:10,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:10,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:43:10,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:43:10,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:43:10,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:43:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:10,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:43:10,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:43:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 05:43:10,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:43:10,610 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 05:43:10,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073276934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:43:10,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1209135828] [2024-11-09 05:43:10,615 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2024-11-09 05:43:10,615 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:43:10,616 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:43:10,617 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:43:10,617 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:43:11,537 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2024-11-09 05:43:11,543 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 64 for LOIs [2024-11-09 05:43:11,579 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:43:14,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1209135828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:14,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:43:14,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [3, 3, 3] total 15 [2024-11-09 05:43:14,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879803860] [2024-11-09 05:43:14,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:14,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:43:14,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:43:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:43:14,316 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:43:15,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:43:15,056 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2024-11-09 05:43:15,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:43:15,057 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-11-09 05:43:15,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:43:15,058 INFO L225 Difference]: With dead ends: 30 [2024-11-09 05:43:15,058 INFO L226 Difference]: Without dead ends: 26 [2024-11-09 05:43:15,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:43:15,060 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:43:15,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:43:15,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-09 05:43:15,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-09 05:43:15,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:43:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2024-11-09 05:43:15,077 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2024-11-09 05:43:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:43:15,078 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2024-11-09 05:43:15,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:43:15,078 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2024-11-09 05:43:15,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:43:15,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:43:15,080 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:43:15,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:43:15,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:43:15,284 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 05:43:15,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:43:15,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1521086010, now seen corresponding path program 1 times [2024-11-09 05:43:15,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:43:15,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551146464] [2024-11-09 05:43:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:15,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:43:15,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:15,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551146464] [2024-11-09 05:43:15,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551146464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:43:15,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002105120] [2024-11-09 05:43:15,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:15,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:43:15,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:43:15,418 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:43:15,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:43:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:15,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:43:15,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:43:15,556 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:43:15,558 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:43:15,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:43:15,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002105120] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:43:15,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [613173969] [2024-11-09 05:43:15,643 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2024-11-09 05:43:15,644 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:43:15,644 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:43:15,645 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:43:15,645 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:43:16,254 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 36 for LOIs [2024-11-09 05:43:16,259 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 64 for LOIs [2024-11-09 05:43:16,280 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:43:18,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [613173969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:18,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:43:18,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7, 5, 6] total 20 [2024-11-09 05:43:18,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987911450] [2024-11-09 05:43:18,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:18,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:43:18,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:18,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:43:18,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:43:18,564 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:43:19,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:43:19,089 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2024-11-09 05:43:19,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:43:19,090 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-11-09 05:43:19,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:43:19,091 INFO L225 Difference]: With dead ends: 26 [2024-11-09 05:43:19,091 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:43:19,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 57 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2024-11-09 05:43:19,093 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:43:19,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:43:19,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:43:19,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:43:19,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:43:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:43:19,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2024-11-09 05:43:19,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:43:19,098 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:43:19,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:43:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:43:19,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:43:19,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-09 05:43:19,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-09 05:43:19,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-09 05:43:19,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-09 05:43:19,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:43:19,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:43:19,311 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-09 05:43:19,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:43:20,416 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:43:20,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 05:43:20,456 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 05:43:20,460 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 05:43:20,461 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 05:43:20,461 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 05:43:20,461 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 05:43:20,462 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 05:43:20,462 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 05:43:20,463 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 05:43:20,463 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 05:43:20,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 05:43:20,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 05:43:20,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 05:43:20,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 05:43:20,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 05:43:20,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 05:43:20,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 05:43:20,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 05:43:20,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 05:43:20,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 05:43:20,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 05:43:20,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 05:43:20,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 05:43:20,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 05:43:20,470 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 05:43:20,471 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 05:43:20,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 05:43:20,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 05:43:20,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 05:43:20,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 05:43:20,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 05:43:20,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 05:43:20,474 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 05:43:20,474 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 05:43:20,475 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 05:43:20,475 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 05:43:20,475 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 05:43:20,476 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 05:43:20,476 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-09 05:43:20,476 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-09 05:43:20,476 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 05:43:20,476 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 05:43:20,477 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 05:43:20,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:43:20 BoogieIcfgContainer [2024-11-09 05:43:20,486 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:43:20,487 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:43:20,487 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:43:20,487 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:43:20,488 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:43:03" (3/4) ... [2024-11-09 05:43:20,492 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:43:20,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 05:43:20,496 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 05:43:20,501 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-09 05:43:20,502 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 05:43:20,503 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 05:43:20,503 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:43:20,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:43:20,620 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:43:20,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:43:20,621 INFO L158 Benchmark]: Toolchain (without parser) took 17518.47ms. Allocated memory was 142.6MB in the beginning and 262.1MB in the end (delta: 119.5MB). Free memory was 110.4MB in the beginning and 135.6MB in the end (delta: -25.2MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. [2024-11-09 05:43:20,621 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:43:20,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.10ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 97.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:43:20,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.59ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:43:20,623 INFO L158 Benchmark]: Boogie Preprocessor took 30.73ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 95.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:43:20,623 INFO L158 Benchmark]: RCFGBuilder took 414.77ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 82.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:43:20,623 INFO L158 Benchmark]: TraceAbstraction took 16511.89ms. Allocated memory was 142.6MB in the beginning and 262.1MB in the end (delta: 119.5MB). Free memory was 82.0MB in the beginning and 139.8MB in the end (delta: -57.8MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2024-11-09 05:43:20,624 INFO L158 Benchmark]: Witness Printer took 133.36ms. Allocated memory is still 262.1MB. Free memory was 139.8MB in the beginning and 135.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:43:20,626 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.10ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 97.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.59ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.73ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 95.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 414.77ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 82.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 16511.89ms. Allocated memory was 142.6MB in the beginning and 262.1MB in the end (delta: 119.5MB). Free memory was 82.0MB in the beginning and 139.8MB in the end (delta: -57.8MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Witness Printer took 133.36ms. Allocated memory is still 262.1MB. Free memory was 139.8MB in the beginning and 135.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 15.3s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 461 IncrementalHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 61 mSDtfsCounter, 461 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 178 SyntacticMatches, 7 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 259 ConstructedInterpolants, 0 QuantifiedInterpolants, 661 SizeOfPredicates, 6 NumberOfNonLiveVariables, 350 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 57/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 9, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 57, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 56, TOOLS_POST_TIME: 0.9s, TOOLS_POST_CALL_APPLICATIONS: 27, TOOLS_POST_CALL_TIME: 0.7s, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 101, TOOLS_QUANTIFIERELIM_TIME: 1.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 156, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 34, DOMAIN_JOIN_TIME: 0.6s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 57, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 6, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 785, DAG_COMPRESSION_RETAINED_NODES: 169, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - ProcedureContractResult [Line: 12]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: (((counter == 0) && (cond == 1)) && (counter == \old(counter))) - ProcedureContractResult [Line: 15]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-09 05:43:20,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50fbb510-f91c-4bf1-a5e2-b1e359b867fe/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE