./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2c_update_all.i --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_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/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_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/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_74792dc6-7e05-47cd-a1cd-cbb2717f589d/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 6bfeee33a1b1d098a34bec7a761d4de16bc595043f21d77f5851cba758b79f34 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:29:58,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:29:58,681 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 04:29:58,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:29:58,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:29:58,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:29:58,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:29:58,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:29:58,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:29:58,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:29:58,732 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:29:58,733 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:29:58,733 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:29:58,733 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:29:58,734 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:29:58,734 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:29:58,734 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:29:58,738 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:29:58,739 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:29:58,739 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:29:58,739 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:29:58,744 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:29:58,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:29:58,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:29:58,745 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:29:58,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:29:58,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:29:58,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:29:58,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:29:58,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:29:58,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:29:58,746 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:29:58,747 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:29:58,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:29:58,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:29:58,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:29:58,750 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:29:58,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:29:58,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:29:58,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:29:58,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:58,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:29:58,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:29:58,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:29:58,753 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:29:58,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:29:58,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:29:58,754 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:29:58,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:29:58,754 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_74792dc6-7e05-47cd-a1cd-cbb2717f589d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bfeee33a1b1d098a34bec7a761d4de16bc595043f21d77f5851cba758b79f34 [2024-11-09 04:29:59,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:29:59,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:29:59,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:29:59,121 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:29:59,121 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:29:59,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/list-simple/dll2c_update_all.i Unable to find full path for "g++" [2024-11-09 04:30:01,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:30:01,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:30:01,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/sv-benchmarks/c/list-simple/dll2c_update_all.i [2024-11-09 04:30:01,422 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/data/b653097c5/1d07e92b08924f829d9c091cc91f6e6f/FLAG47409c48c [2024-11-09 04:30:01,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/data/b653097c5/1d07e92b08924f829d9c091cc91f6e6f [2024-11-09 04:30:01,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:30:01,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:30:01,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:30:01,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:30:01,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:30:01,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:01" (1/1) ... [2024-11-09 04:30:01,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d0255f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:01, skipping insertion in model container [2024-11-09 04:30:01,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:30:01" (1/1) ... [2024-11-09 04:30:01,770 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:30:02,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:30:02,183 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:30:02,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:30:02,272 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:30:02,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02 WrapperNode [2024-11-09 04:30:02,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:30:02,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:30:02,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:30:02,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:30:02,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,320 INFO L138 Inliner]: procedures = 126, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 146 [2024-11-09 04:30:02,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:30:02,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:30:02,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:30:02,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:30:02,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,335 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:30:02,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:30:02,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:30:02,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:30:02,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (1/1) ... [2024-11-09 04:30:02,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:30:02,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:02,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:30:02,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:30:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:30:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:30:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-11-09 04:30:02,418 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-11-09 04:30:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:30:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:30:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:30:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:30:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:30:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:30:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:30:02,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:30:02,541 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:30:02,543 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:30:02,907 INFO L? ?]: Removed 87 outVars from TransFormulas that were not future-live. [2024-11-09 04:30:02,907 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:30:03,023 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:30:03,023 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:30:03,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:30:03 BoogieIcfgContainer [2024-11-09 04:30:03,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:30:03,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:30:03,047 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:30:03,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:30:03,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:30:01" (1/3) ... [2024-11-09 04:30:03,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f97eefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:30:03, skipping insertion in model container [2024-11-09 04:30:03,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:30:02" (2/3) ... [2024-11-09 04:30:03,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f97eefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:30:03, skipping insertion in model container [2024-11-09 04:30:03,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:30:03" (3/3) ... [2024-11-09 04:30:03,062 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_update_all.i [2024-11-09 04:30:03,078 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:30:03,078 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-09 04:30:03,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:30:03,146 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;@2225b0b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:30:03,146 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-09 04:30:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 56 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:03,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 04:30:03,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:03,161 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:03,161 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:03,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:03,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1917439256, now seen corresponding path program 1 times [2024-11-09 04:30:03,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:03,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965688589] [2024-11-09 04:30:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:03,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:30:03,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:03,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965688589] [2024-11-09 04:30:03,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965688589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:03,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:03,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:30:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974504140] [2024-11-09 04:30:03,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:03,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:30:03,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:03,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:30:03,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:30:03,576 INFO L87 Difference]: Start difference. First operand has 60 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 56 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:30:03,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:03,680 INFO L93 Difference]: Finished difference Result 109 states and 138 transitions. [2024-11-09 04:30:03,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:30:03,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-09 04:30:03,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:03,692 INFO L225 Difference]: With dead ends: 109 [2024-11-09 04:30:03,692 INFO L226 Difference]: Without dead ends: 55 [2024-11-09 04:30:03,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:30:03,699 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 2 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:03,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 125 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-09 04:30:03,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2024-11-09 04:30:03,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 49 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2024-11-09 04:30:03,749 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 11 [2024-11-09 04:30:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:03,750 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2024-11-09 04:30:03,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:30:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2024-11-09 04:30:03,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 04:30:03,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:03,755 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:03,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:30:03,755 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:03,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:03,756 INFO L85 PathProgramCache]: Analyzing trace with hash 344714122, now seen corresponding path program 1 times [2024-11-09 04:30:03,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:03,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726916079] [2024-11-09 04:30:03,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:03,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 04:30:04,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:04,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726916079] [2024-11-09 04:30:04,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726916079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:04,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:04,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:30:04,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033034905] [2024-11-09 04:30:04,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:04,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:04,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:04,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:04,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:04,011 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 04:30:04,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:04,085 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2024-11-09 04:30:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:04,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 14 [2024-11-09 04:30:04,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:04,087 INFO L225 Difference]: With dead ends: 59 [2024-11-09 04:30:04,087 INFO L226 Difference]: Without dead ends: 57 [2024-11-09 04:30:04,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:04,088 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:04,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 144 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:04,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-09 04:30:04,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-09 04:30:04,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 39 states have (on average 1.564102564102564) internal successors, (61), 52 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:30:04,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions. [2024-11-09 04:30:04,105 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 14 [2024-11-09 04:30:04,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:04,105 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions. [2024-11-09 04:30:04,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 04:30:04,106 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2024-11-09 04:30:04,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 04:30:04,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:04,109 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:04,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:30:04,110 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:04,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:04,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2145837003, now seen corresponding path program 1 times [2024-11-09 04:30:04,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:04,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392700484] [2024-11-09 04:30:04,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:04,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:04,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:04,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392700484] [2024-11-09 04:30:04,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392700484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:04,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:04,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:30:04,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81642433] [2024-11-09 04:30:04,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:04,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:04,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:04,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:04,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:04,348 INFO L87 Difference]: Start difference. First operand 57 states and 67 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 04:30:04,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:04,494 INFO L93 Difference]: Finished difference Result 101 states and 121 transitions. [2024-11-09 04:30:04,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:04,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-09 04:30:04,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:04,497 INFO L225 Difference]: With dead ends: 101 [2024-11-09 04:30:04,498 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 04:30:04,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:04,500 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 65 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:04,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 76 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 04:30:04,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 65. [2024-11-09 04:30:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 60 states have internal predecessors, (69), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:30:04,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2024-11-09 04:30:04,520 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 20 [2024-11-09 04:30:04,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:04,520 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2024-11-09 04:30:04,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 04:30:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2024-11-09 04:30:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 04:30:04,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:04,522 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:04,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:30:04,522 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:04,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:04,523 INFO L85 PathProgramCache]: Analyzing trace with hash 49475527, now seen corresponding path program 1 times [2024-11-09 04:30:04,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:04,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336682750] [2024-11-09 04:30:04,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:04,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 04:30:04,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:04,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336682750] [2024-11-09 04:30:04,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336682750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:04,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465166645] [2024-11-09 04:30:04,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:04,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:04,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:04,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:30:04,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:30:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:04,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:30:04,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 04:30:05,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:05,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465166645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:05,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:30:05,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 04:30:05,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162285027] [2024-11-09 04:30:05,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:05,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:30:05,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:05,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:30:05,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:30:05,045 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 04:30:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:05,128 INFO L93 Difference]: Finished difference Result 114 states and 130 transitions. [2024-11-09 04:30:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:30:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 23 [2024-11-09 04:30:05,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:05,131 INFO L225 Difference]: With dead ends: 114 [2024-11-09 04:30:05,132 INFO L226 Difference]: Without dead ends: 58 [2024-11-09 04:30:05,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:30:05,134 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:05,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:05,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-09 04:30:05,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-09 04:30:05,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 54 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:05,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2024-11-09 04:30:05,148 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 23 [2024-11-09 04:30:05,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:05,148 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2024-11-09 04:30:05,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 04:30:05,149 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2024-11-09 04:30:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 04:30:05,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:05,150 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:05,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 04:30:05,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:05,351 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:05,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:05,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1856982321, now seen corresponding path program 1 times [2024-11-09 04:30:05,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:05,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477143699] [2024-11-09 04:30:05,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:05,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:05,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:05,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:05,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477143699] [2024-11-09 04:30:05,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477143699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:05,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:05,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:05,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461290684] [2024-11-09 04:30:05,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:05,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:05,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:05,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:05,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:05,510 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:30:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:05,665 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2024-11-09 04:30:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:05,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-09 04:30:05,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:05,668 INFO L225 Difference]: With dead ends: 108 [2024-11-09 04:30:05,668 INFO L226 Difference]: Without dead ends: 68 [2024-11-09 04:30:05,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:30:05,670 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 15 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:05,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 111 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:05,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-09 04:30:05,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2024-11-09 04:30:05,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 55 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:05,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2024-11-09 04:30:05,685 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 24 [2024-11-09 04:30:05,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:05,685 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2024-11-09 04:30:05,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:30:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2024-11-09 04:30:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 04:30:05,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:05,689 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:05,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:30:05,690 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:05,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:05,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1856996467, now seen corresponding path program 1 times [2024-11-09 04:30:05,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:05,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710943893] [2024-11-09 04:30:05,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:05,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:05,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:05,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:05,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710943893] [2024-11-09 04:30:05,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710943893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:05,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:05,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:30:05,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787653698] [2024-11-09 04:30:05,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:05,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:05,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:05,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:05,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:05,818 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:30:05,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:05,924 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2024-11-09 04:30:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:05,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-09 04:30:05,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:05,926 INFO L225 Difference]: With dead ends: 72 [2024-11-09 04:30:05,926 INFO L226 Difference]: Without dead ends: 70 [2024-11-09 04:30:05,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:05,927 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 14 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:05,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 110 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:05,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-09 04:30:05,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2024-11-09 04:30:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 58 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:05,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2024-11-09 04:30:05,943 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 24 [2024-11-09 04:30:05,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:05,944 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2024-11-09 04:30:05,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:30:05,944 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2024-11-09 04:30:05,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 04:30:05,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:05,945 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:05,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:30:05,946 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:05,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:05,946 INFO L85 PathProgramCache]: Analyzing trace with hash -909139979, now seen corresponding path program 1 times [2024-11-09 04:30:05,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:05,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282462990] [2024-11-09 04:30:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:05,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:06,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:06,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282462990] [2024-11-09 04:30:06,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282462990] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:06,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867648092] [2024-11-09 04:30:06,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:06,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:06,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:06,197 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:30:06,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:30:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:06,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:30:06,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:06,524 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:06,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867648092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:06,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:30:06,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-09 04:30:06,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972745878] [2024-11-09 04:30:06,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:06,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:30:06,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:06,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:30:06,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:30:06,527 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 04:30:06,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:06,660 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2024-11-09 04:30:06,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:30:06,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 28 [2024-11-09 04:30:06,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:06,662 INFO L225 Difference]: With dead ends: 70 [2024-11-09 04:30:06,663 INFO L226 Difference]: Without dead ends: 68 [2024-11-09 04:30:06,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:30:06,664 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 66 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:06,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 99 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-09 04:30:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60. [2024-11-09 04:30:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 56 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:06,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2024-11-09 04:30:06,681 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 28 [2024-11-09 04:30:06,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:06,681 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2024-11-09 04:30:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 04:30:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2024-11-09 04:30:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 04:30:06,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:06,683 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:06,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 04:30:06,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:06,884 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:06,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1881431798, now seen corresponding path program 1 times [2024-11-09 04:30:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078544574] [2024-11-09 04:30:06,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:06,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:07,057 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:07,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:07,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078544574] [2024-11-09 04:30:07,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078544574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:07,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427308675] [2024-11-09 04:30:07,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:07,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:07,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:07,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:30:07,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:30:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:07,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:30:07,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:07,380 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:30:07,515 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:07,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427308675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:30:07,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [802518601] [2024-11-09 04:30:07,539 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 04:30:07,540 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:30:07,544 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:30:07,551 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:30:07,552 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:30:09,514 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 6 for LOIs [2024-11-09 04:30:09,531 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:30:13,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [802518601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:13,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:30:13,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 5, 5] total 27 [2024-11-09 04:30:13,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167058005] [2024-11-09 04:30:13,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:13,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:30:13,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:13,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:30:13,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-11-09 04:30:13,680 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 16 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:18,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:30:20,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:20,416 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2024-11-09 04:30:20,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 04:30:20,417 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-09 04:30:20,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:20,418 INFO L225 Difference]: With dead ends: 101 [2024-11-09 04:30:20,418 INFO L226 Difference]: Without dead ends: 76 [2024-11-09 04:30:20,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-11-09 04:30:20,420 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 11 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:20,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 252 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2024-11-09 04:30:20,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-09 04:30:20,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2024-11-09 04:30:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 62 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:20,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2024-11-09 04:30:20,433 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 29 [2024-11-09 04:30:20,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:20,434 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2024-11-09 04:30:20,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:20,434 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2024-11-09 04:30:20,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 04:30:20,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:20,435 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:20,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 04:30:20,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:20,640 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:20,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:20,641 INFO L85 PathProgramCache]: Analyzing trace with hash 411560027, now seen corresponding path program 1 times [2024-11-09 04:30:20,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:20,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459049638] [2024-11-09 04:30:20,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:20,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 04:30:20,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:20,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459049638] [2024-11-09 04:30:20,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459049638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:20,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:20,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:30:20,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439439684] [2024-11-09 04:30:20,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:20,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:20,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:20,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:20,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:20,737 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (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 04:30:20,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:20,801 INFO L93 Difference]: Finished difference Result 112 states and 130 transitions. [2024-11-09 04:30:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:20,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (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 32 [2024-11-09 04:30:20,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:20,803 INFO L225 Difference]: With dead ends: 112 [2024-11-09 04:30:20,803 INFO L226 Difference]: Without dead ends: 65 [2024-11-09 04:30:20,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:20,804 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:20,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 125 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:20,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-09 04:30:20,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2024-11-09 04:30:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 60 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2024-11-09 04:30:20,826 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 32 [2024-11-09 04:30:20,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:20,828 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2024-11-09 04:30:20,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (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 04:30:20,828 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2024-11-09 04:30:20,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 04:30:20,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:20,831 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:20,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 04:30:20,831 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:20,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:20,832 INFO L85 PathProgramCache]: Analyzing trace with hash -126540963, now seen corresponding path program 1 times [2024-11-09 04:30:20,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:20,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745081142] [2024-11-09 04:30:20,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:20,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:21,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:21,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745081142] [2024-11-09 04:30:21,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745081142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:21,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078720563] [2024-11-09 04:30:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:21,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:21,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:21,086 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:30:21,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:30:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:21,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:30:21,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:21,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:30:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:21,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078720563] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:30:21,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [332510603] [2024-11-09 04:30:21,409 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 04:30:21,409 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:30:21,410 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:30:21,410 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:30:21,410 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:30:22,513 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 6 for LOIs [2024-11-09 04:30:22,524 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:30:27,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [332510603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:27,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:30:27,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6, 6, 6] total 29 [2024-11-09 04:30:27,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208129635] [2024-11-09 04:30:27,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:27,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 04:30:27,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:27,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 04:30:27,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:30:27,361 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 18 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:30,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:30,405 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2024-11-09 04:30:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 04:30:30,406 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2024-11-09 04:30:30,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:30,407 INFO L225 Difference]: With dead ends: 74 [2024-11-09 04:30:30,407 INFO L226 Difference]: Without dead ends: 73 [2024-11-09 04:30:30,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 69 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2024-11-09 04:30:30,408 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:30,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 185 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 04:30:30,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-09 04:30:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2024-11-09 04:30:30,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 63 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2024-11-09 04:30:30,425 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 33 [2024-11-09 04:30:30,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:30,426 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2024-11-09 04:30:30,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2024-11-09 04:30:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 04:30:30,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:30,427 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:30,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 04:30:30,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 04:30:30,631 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:30,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:30,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1469096892, now seen corresponding path program 1 times [2024-11-09 04:30:30,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:30,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688372976] [2024-11-09 04:30:30,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:30,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:30,852 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:30,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:30,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688372976] [2024-11-09 04:30:30,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688372976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:30,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749569845] [2024-11-09 04:30:30,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:30,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:30,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:30,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:30:30,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 04:30:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:31,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 04:30:31,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:31,072 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:31,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:30:31,161 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:30:31,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749569845] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:30:31,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [628370807] [2024-11-09 04:30:31,164 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 04:30:31,164 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:30:31,164 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:30:31,165 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:30:31,165 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:30:32,282 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 6 for LOIs [2024-11-09 04:30:32,292 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:30:47,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [628370807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:47,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:30:47,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [8, 8, 8] total 27 [2024-11-09 04:30:47,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612352006] [2024-11-09 04:30:47,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:47,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 04:30:47,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:47,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 04:30:47,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=615, Unknown=5, NotChecked=0, Total=702 [2024-11-09 04:30:47,787 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand has 19 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:52,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:52,865 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2024-11-09 04:30:52,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 04:30:52,866 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-11-09 04:30:52,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:52,867 INFO L225 Difference]: With dead ends: 92 [2024-11-09 04:30:52,867 INFO L226 Difference]: Without dead ends: 66 [2024-11-09 04:30:52,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 86 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=100, Invalid=707, Unknown=5, NotChecked=0, Total=812 [2024-11-09 04:30:52,869 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:52,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 171 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 04:30:52,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-09 04:30:52,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 61. [2024-11-09 04:30:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 57 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2024-11-09 04:30:52,889 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 37 [2024-11-09 04:30:52,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:52,890 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2024-11-09 04:30:52,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2024-11-09 04:30:52,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 04:30:52,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:52,891 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:52,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 04:30:53,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:53,092 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:53,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:53,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1233760220, now seen corresponding path program 1 times [2024-11-09 04:30:53,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:53,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349547551] [2024-11-09 04:30:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:53,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:53,233 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:30:53,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:53,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349547551] [2024-11-09 04:30:53,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349547551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:53,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:53,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:53,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086378550] [2024-11-09 04:30:53,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:53,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:53,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:53,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:53,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:53,235 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 04:30:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:53,331 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2024-11-09 04:30:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 46 [2024-11-09 04:30:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:53,333 INFO L225 Difference]: With dead ends: 83 [2024-11-09 04:30:53,333 INFO L226 Difference]: Without dead ends: 65 [2024-11-09 04:30:53,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:30:53,334 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:53,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 90 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:53,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-09 04:30:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2024-11-09 04:30:53,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 58 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:53,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2024-11-09 04:30:53,350 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 46 [2024-11-09 04:30:53,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:53,351 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2024-11-09 04:30:53,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 04:30:53,352 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2024-11-09 04:30:53,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 04:30:53,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:53,354 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:53,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 04:30:53,354 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:53,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:53,357 INFO L85 PathProgramCache]: Analyzing trace with hash 408536281, now seen corresponding path program 1 times [2024-11-09 04:30:53,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:53,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987001062] [2024-11-09 04:30:53,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:53,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:53,469 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:30:53,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:53,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987001062] [2024-11-09 04:30:53,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987001062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:53,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:53,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:30:53,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577662938] [2024-11-09 04:30:53,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:53,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:53,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:53,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:53,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:53,471 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 04:30:53,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:53,562 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2024-11-09 04:30:53,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:53,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 47 [2024-11-09 04:30:53,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:53,563 INFO L225 Difference]: With dead ends: 69 [2024-11-09 04:30:53,563 INFO L226 Difference]: Without dead ends: 67 [2024-11-09 04:30:53,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:53,565 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:53,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 89 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:53,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-09 04:30:53,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2024-11-09 04:30:53,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 62 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:53,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2024-11-09 04:30:53,579 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 47 [2024-11-09 04:30:53,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:53,579 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2024-11-09 04:30:53,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 04:30:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2024-11-09 04:30:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 04:30:53,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:53,580 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:53,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 04:30:53,581 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:53,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:53,581 INFO L85 PathProgramCache]: Analyzing trace with hash 437013814, now seen corresponding path program 1 times [2024-11-09 04:30:53,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:53,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538345717] [2024-11-09 04:30:53,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:53,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:30:53,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:53,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538345717] [2024-11-09 04:30:53,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538345717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:53,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723744711] [2024-11-09 04:30:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:53,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:53,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:53,775 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:30:53,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 04:30:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:53,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:30:53,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:30:54,159 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:54,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723744711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:54,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:30:54,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-09 04:30:54,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574770076] [2024-11-09 04:30:54,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:54,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:30:54,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:30:54,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:30:54,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:30:54,161 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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 04:30:54,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:54,286 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2024-11-09 04:30:54,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:30:54,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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 51 [2024-11-09 04:30:54,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:54,287 INFO L225 Difference]: With dead ends: 67 [2024-11-09 04:30:54,287 INFO L226 Difference]: Without dead ends: 65 [2024-11-09 04:30:54,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:30:54,288 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:54,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 85 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:54,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-09 04:30:54,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2024-11-09 04:30:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 60 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:54,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2024-11-09 04:30:54,303 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 51 [2024-11-09 04:30:54,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:54,303 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2024-11-09 04:30:54,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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 04:30:54,303 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2024-11-09 04:30:54,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 04:30:54,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:54,304 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:54,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 04:30:54,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:54,505 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:30:54,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:54,505 INFO L85 PathProgramCache]: Analyzing trace with hash 662526461, now seen corresponding path program 1 times [2024-11-09 04:30:54,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:30:54,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792574793] [2024-11-09 04:30:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:30:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:30:54,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:30:54,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792574793] [2024-11-09 04:30:54,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792574793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:30:54,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35473122] [2024-11-09 04:30:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:54,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:30:54,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:30:54,737 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:30:54,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 04:30:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:54,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:30:54,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:30:55,055 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:30:55,184 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:30:55,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35473122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:30:55,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1727299890] [2024-11-09 04:30:55,188 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 04:30:55,188 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:30:55,189 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:30:55,189 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:30:55,189 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:30:56,510 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 6 for LOIs [2024-11-09 04:30:56,535 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:31:09,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1727299890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:09,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:31:09,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [5, 5, 5] total 36 [2024-11-09 04:31:09,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397936982] [2024-11-09 04:31:09,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:09,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 04:31:09,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:09,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 04:31:09,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1070, Unknown=7, NotChecked=0, Total=1332 [2024-11-09 04:31:09,468 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 25 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 21 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:15,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:15,612 INFO L93 Difference]: Finished difference Result 86 states and 97 transitions. [2024-11-09 04:31:15,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 04:31:15,612 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 21 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2024-11-09 04:31:15,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:15,613 INFO L225 Difference]: With dead ends: 86 [2024-11-09 04:31:15,614 INFO L226 Difference]: Without dead ends: 84 [2024-11-09 04:31:15,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 116 SyntacticMatches, 9 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=304, Invalid=1249, Unknown=7, NotChecked=0, Total=1560 [2024-11-09 04:31:15,615 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:15,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 110 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 04:31:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-09 04:31:15,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 70. [2024-11-09 04:31:15,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 66 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:15,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2024-11-09 04:31:15,636 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 52 [2024-11-09 04:31:15,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:15,637 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2024-11-09 04:31:15,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 21 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:15,637 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2024-11-09 04:31:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 04:31:15,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:15,638 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:15,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 04:31:15,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:15,839 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:31:15,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1951192860, now seen corresponding path program 1 times [2024-11-09 04:31:15,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:15,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431151571] [2024-11-09 04:31:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:15,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 04:31:15,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:15,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431151571] [2024-11-09 04:31:15,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431151571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:15,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:15,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:31:15,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528357305] [2024-11-09 04:31:15,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:15,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:31:15,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:15,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:31:15,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:31:15,976 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 04:31:16,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:16,047 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2024-11-09 04:31:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:31:16,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 55 [2024-11-09 04:31:16,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:16,049 INFO L225 Difference]: With dead ends: 95 [2024-11-09 04:31:16,049 INFO L226 Difference]: Without dead ends: 69 [2024-11-09 04:31:16,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:31:16,050 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:16,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 101 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:31:16,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-09 04:31:16,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2024-11-09 04:31:16,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.1290322580645162) internal successors, (70), 64 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:16,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2024-11-09 04:31:16,069 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 55 [2024-11-09 04:31:16,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:16,069 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2024-11-09 04:31:16,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 04:31:16,069 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2024-11-09 04:31:16,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 04:31:16,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:16,070 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:16,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 04:31:16,070 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:31:16,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:16,071 INFO L85 PathProgramCache]: Analyzing trace with hash 357436644, now seen corresponding path program 1 times [2024-11-09 04:31:16,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:16,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700441883] [2024-11-09 04:31:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:16,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:16,293 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:31:16,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:16,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700441883] [2024-11-09 04:31:16,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700441883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:31:16,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422297141] [2024-11-09 04:31:16,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:16,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:16,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:16,297 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:16,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 04:31:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:16,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:31:16,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:31:16,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:31:16,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422297141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:16,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [371362380] [2024-11-09 04:31:16,758 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 04:31:16,758 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:31:16,758 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:31:16,759 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:31:16,759 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:31:17,820 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 6 for LOIs [2024-11-09 04:31:17,828 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:31:23,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [371362380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:23,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:31:23,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [6, 6, 6] total 38 [2024-11-09 04:31:23,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606750873] [2024-11-09 04:31:23,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:23,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 04:31:23,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:23,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 04:31:23,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1285, Unknown=5, NotChecked=0, Total=1482 [2024-11-09 04:31:23,722 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand has 27 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:30,484 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2024-11-09 04:31:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 04:31:30,485 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2024-11-09 04:31:30,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:30,486 INFO L225 Difference]: With dead ends: 81 [2024-11-09 04:31:30,486 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 04:31:30,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 127 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=229, Invalid=1487, Unknown=6, NotChecked=0, Total=1722 [2024-11-09 04:31:30,487 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 55 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:30,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 38 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 04:31:30,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 04:31:30,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 71. [2024-11-09 04:31:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 65 states have (on average 1.123076923076923) internal successors, (73), 67 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2024-11-09 04:31:30,506 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 56 [2024-11-09 04:31:30,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:30,506 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2024-11-09 04:31:30,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2024-11-09 04:31:30,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 04:31:30,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:30,508 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:30,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 04:31:30,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 04:31:30,712 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 04:31:30,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:30,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1949103179, now seen corresponding path program 1 times [2024-11-09 04:31:30,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:30,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352028390] [2024-11-09 04:31:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:30,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:31:30,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:30,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352028390] [2024-11-09 04:31:30,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352028390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:31:30,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834280703] [2024-11-09 04:31:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:30,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:30,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:30,930 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:30,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 04:31:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:31,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 04:31:31,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:31:31,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 04:31:31,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834280703] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:31,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [473562947] [2024-11-09 04:31:31,381 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 04:31:31,383 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:31:31,383 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:31:31,383 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:31:31,384 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:31:32,667 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 6 for LOIs [2024-11-09 04:31:32,673 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:31:44,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [473562947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:44,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:31:44,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [8, 8, 8] total 37 [2024-11-09 04:31:44,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441449683] [2024-11-09 04:31:44,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:44,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 04:31:44,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:44,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 04:31:44,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1170, Unknown=7, NotChecked=0, Total=1332 [2024-11-09 04:31:44,962 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand has 29 states, 26 states have (on average 1.5) internal successors, (39), 25 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:49,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:49,303 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2024-11-09 04:31:49,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 04:31:49,304 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 1.5) internal successors, (39), 25 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2024-11-09 04:31:49,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:49,304 INFO L225 Difference]: With dead ends: 73 [2024-11-09 04:31:49,304 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:31:49,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 140 SyntacticMatches, 12 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=266, Invalid=1797, Unknown=7, NotChecked=0, Total=2070 [2024-11-09 04:31:49,306 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:49,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 13 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 04:31:49,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:31:49,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:31:49,307 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 04:31:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:31:49,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2024-11-09 04:31:49,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:49,307 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:31:49,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 1.5) internal successors, (39), 25 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:49,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:31:49,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:31:49,312 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2024-11-09 04:31:49,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2024-11-09 04:31:49,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-09 04:31:49,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-09 04:31:49,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-09 04:31:49,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-09 04:31:49,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-09 04:31:49,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-09 04:31:49,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2024-11-09 04:31:49,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2024-11-09 04:31:49,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-09 04:31:49,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-09 04:31:49,315 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-09 04:31:49,315 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-09 04:31:49,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 04:31:49,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 04:31:49,518 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:49,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:33:13,480 WARN L286 SmtUtils]: Spent 1.33m on a formula simplification. DAG size of input: 426 DAG size of output: 121 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 04:33:19,651 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:33:19,673 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,676 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,678 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-09 04:33:19,678 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,678 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,679 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,679 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,680 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-09 04:33:19,680 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,680 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!offset [2024-11-09 04:33:19,680 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-09 04:33:19,681 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-09 04:33:19,681 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!base [2024-11-09 04:33:19,681 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,681 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,681 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-09 04:33:19,682 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~last~0!offset [2024-11-09 04:33:19,689 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 04:33:19,689 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 04:33:19,690 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!base [2024-11-09 04:33:19,690 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!base [2024-11-09 04:33:19,690 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 04:33:19,691 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-09 04:33:19,691 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-09 04:33:19,691 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~s~0!base,]]] [2024-11-09 04:33:19,691 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!offset [2024-11-09 04:33:19,692 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-09 04:33:19,692 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-09 04:33:19,692 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~s~0!base,]]] [2024-11-09 04:33:19,692 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!base [2024-11-09 04:33:19,692 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,693 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 04:33:19,693 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,693 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!offset [2024-11-09 04:33:19,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-09 04:33:19,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-09 04:33:19,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!offset [2024-11-09 04:33:19,694 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,695 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 04:33:19,695 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,695 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-09 04:33:19,696 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!base [2024-11-09 04:33:19,696 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!base [2024-11-09 04:33:19,696 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,696 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-09 04:33:19,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,699 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-09 04:33:19,699 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,699 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,700 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,700 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-09 04:33:19,701 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,701 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,701 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-09 04:33:19,701 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,702 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-09 04:33:19,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!base [2024-11-09 04:33:19,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!base [2024-11-09 04:33:19,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,703 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 04:33:19,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~expected~0 [2024-11-09 04:33:19,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-09 04:33:19,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head!offset [2024-11-09 04:33:19,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-09 04:33:19,704 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,705 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-09 04:33:19,705 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~expected~0 [2024-11-09 04:33:19,705 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,705 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-09 04:33:19,705 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~expected~0 [2024-11-09 04:33:19,705 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-11-09 04:33:19,716 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,716 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,717 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-09 04:33:19,717 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 04:33:19,717 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,718 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-09 04:33:19,718 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,718 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,718 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!offset [2024-11-09 04:33:19,718 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:33:19,722 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 04:33:19,722 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 04:33:19,722 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 04:33:19,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:33:19 BoogieIcfgContainer [2024-11-09 04:33:19,724 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:33:19,724 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:33:19,725 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:33:19,725 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:33:19,726 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:30:03" (3/4) ... [2024-11-09 04:33:19,729 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:33:19,734 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2024-11-09 04:33:19,740 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-09 04:33:19,741 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 04:33:19,741 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 04:33:19,742 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:33:19,856 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:33:19,857 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:33:19,857 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:33:19,857 INFO L158 Benchmark]: Toolchain (without parser) took 198160.88ms. Allocated memory was 130.0MB in the beginning and 232.8MB in the end (delta: 102.8MB). Free memory was 98.1MB in the beginning and 178.7MB in the end (delta: -80.7MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-09 04:33:19,858 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:33:19,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.34ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 77.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 04:33:19,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.11ms. Allocated memory is still 130.0MB. Free memory was 77.3MB in the beginning and 75.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:33:19,859 INFO L158 Benchmark]: Boogie Preprocessor took 30.99ms. Allocated memory is still 130.0MB. Free memory was 75.2MB in the beginning and 73.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:33:19,859 INFO L158 Benchmark]: RCFGBuilder took 671.26ms. Allocated memory is still 130.0MB. Free memory was 73.6MB in the beginning and 97.3MB in the end (delta: -23.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-09 04:33:19,860 INFO L158 Benchmark]: TraceAbstraction took 196676.51ms. Allocated memory was 130.0MB in the beginning and 232.8MB in the end (delta: 102.8MB). Free memory was 96.7MB in the beginning and 185.0MB in the end (delta: -88.3MB). Peak memory consumption was 141.4MB. Max. memory is 16.1GB. [2024-11-09 04:33:19,860 INFO L158 Benchmark]: Witness Printer took 132.29ms. Allocated memory is still 232.8MB. Free memory was 185.0MB in the beginning and 178.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 04:33:19,862 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 575.34ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 77.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.11ms. Allocated memory is still 130.0MB. Free memory was 77.3MB in the beginning and 75.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.99ms. Allocated memory is still 130.0MB. Free memory was 75.2MB in the beginning and 73.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 671.26ms. Allocated memory is still 130.0MB. Free memory was 73.6MB in the beginning and 97.3MB in the end (delta: -23.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * TraceAbstraction took 196676.51ms. Allocated memory was 130.0MB in the beginning and 232.8MB in the end (delta: 102.8MB). Free memory was 96.7MB in the beginning and 185.0MB in the end (delta: -88.3MB). Peak memory consumption was 141.4MB. Max. memory is 16.1GB. * Witness Printer took 132.29ms. Allocated memory is still 232.8MB. Free memory was 185.0MB in the beginning and 178.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~last~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~expected~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~expected~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~expected~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID * 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: 595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 632]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 632]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 615]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 615]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 635]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 635]: 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 2 procedures, 60 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 106.4s, OverallIterations: 18, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 33.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 20.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 339 mSDsluCounter, 2103 SdHoareTripleChecker+Invalid, 19.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1523 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3697 IncrementalHoareTripleChecker+Invalid, 3754 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 580 mSDtfsCounter, 3697 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 994 GetRequests, 703 SyntacticMatches, 48 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3011 ImplicationChecksByTransitivity, 68.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=17, InterpolantAutomatonStates: 193, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 93 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1011 NumberOfCodeBlocks, 1011 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1245 ConstructedInterpolants, 0 QuantifiedInterpolants, 2901 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2859 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 33 InterpolantComputations, 12 PerfectInterpolantSequences, 354/451 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: 7.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 12, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 213, DAG_INTERPRETER_EARLY_EXITS: 12, TOOLS_POST_APPLICATIONS: 552, TOOLS_POST_TIME: 3.1s, TOOLS_POST_CALL_APPLICATIONS: 48, TOOLS_POST_CALL_TIME: 1.1s, TOOLS_POST_RETURN_APPLICATIONS: 36, TOOLS_POST_RETURN_TIME: 1.7s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 555, TOOLS_QUANTIFIERELIM_TIME: 5.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 914, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 81, DOMAIN_JOIN_TIME: 0.7s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 10, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 41, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 213, DOMAIN_ISBOTTOM_TIME: 0.9s, LOOP_SUMMARIZER_APPLICATIONS: 31, LOOP_SUMMARIZER_CACHE_MISSES: 31, LOOP_SUMMARIZER_OVERALL_TIME: 1.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 41, CALL_SUMMARIZER_APPLICATIONS: 36, CALL_SUMMARIZER_CACHE_MISSES: 6, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 9683, DAG_COMPRESSION_RETAINED_NODES: 718, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 588]: Loop Invariant Derived loop invariant: ((((2 == len) && (len == 2)) && (data == 1)) || (((len == 1) && (len == 2)) && (data == 1))) - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: (((index == 0) || (index <= 1)) || ((index == 0) && (2 == data))) - InvariantResult [Line: 631]: Loop Invariant Derived loop invariant: ((((1 <= i) && (i <= 2)) && (len == 2)) || ((i == 0) && (len == 2))) - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: ((((1 <= i) && (i <= 2)) && (len == 2)) || ((i == 0) && (len == 2))) - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: ((index == 0) || ((index <= 1) && (0 <= index))) - ProcedureContractResult [Line: 575]: Procedure Contract for node_create Derived contract for procedure node_create. Requires: (data == 1) Ensures: (data == 1) RESULT: Ultimate proved your program to be correct! [2024-11-09 04:33:19,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74792dc6-7e05-47cd-a1cd-cbb2717f589d/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