./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:29:35,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:29:35,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-24 01:29:35,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:29:35,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:29:35,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:29:35,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:29:35,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:29:35,472 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:29:35,472 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:29:35,472 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:29:35,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:29:35,473 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:29:35,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:29:35,473 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:29:35,474 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:29:35,474 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:29:35,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:29:35,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:29:35,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:29:35,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:29:35,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:29:35,475 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 01:29:35,475 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:29:35,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:29:35,476 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:29:35,476 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:29:35,476 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:29:35,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:29:35,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:29:35,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:29:35,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:35,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:29:35,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:29:35,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:29:35,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:29:35,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:35,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:29:35,478 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2024-11-24 01:29:35,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:29:35,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:29:35,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:29:35,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:29:35,886 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:29:35,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-24 01:29:39,621 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/data/2223c1ed2/7bb66b21dc9348038f31796d2811cfe5/FLAG57ddc952d [2024-11-24 01:29:39,990 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:29:39,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-24 01:29:40,016 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/data/2223c1ed2/7bb66b21dc9348038f31796d2811cfe5/FLAG57ddc952d [2024-11-24 01:29:40,066 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/data/2223c1ed2/7bb66b21dc9348038f31796d2811cfe5 [2024-11-24 01:29:40,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:29:40,082 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:29:40,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:29:40,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:29:40,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:29:40,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2255b0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40, skipping insertion in model container [2024-11-24 01:29:40,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,161 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:29:40,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:29:40,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:29:40,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:29:40,449 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:29:40,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40 WrapperNode [2024-11-24 01:29:40,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:29:40,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:29:40,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:29:40,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:29:40,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,491 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-11-24 01:29:40,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:29:40,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:29:40,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:29:40,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:29:40,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,515 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-24 01:29:40,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,521 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,522 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:29:40,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:29:40,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:29:40,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:29:40,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (1/1) ... [2024-11-24 01:29:40,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:29:40,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:40,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:29:40,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:29:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:29:40,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:29:40,714 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:29:40,717 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:29:40,883 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-24 01:29:40,884 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:29:40,899 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:29:40,899 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:29:40,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:29:40 BoogieIcfgContainer [2024-11-24 01:29:40,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:29:40,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:29:40,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:29:40,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:29:40,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:29:40" (1/3) ... [2024-11-24 01:29:40,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da1aa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:29:40, skipping insertion in model container [2024-11-24 01:29:40,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:29:40" (2/3) ... [2024-11-24 01:29:40,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da1aa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:29:40, skipping insertion in model container [2024-11-24 01:29:40,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:29:40" (3/3) ... [2024-11-24 01:29:40,919 INFO L128 eAbstractionObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-24 01:29:40,942 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:29:40,945 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c that has 1 procedures, 25 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2024-11-24 01:29:41,029 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:29:41,052 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=PETRI_NET, 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;@1c3e78a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:29:41,053 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-24 01:29:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 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) [2024-11-24 01:29:41,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-24 01:29:41,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:41,069 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-24 01:29:41,070 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:41,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:41,077 INFO L85 PathProgramCache]: Analyzing trace with hash 28693894, now seen corresponding path program 1 times [2024-11-24 01:29:41,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:41,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947826092] [2024-11-24 01:29:41,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:41,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:41,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:41,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:41,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947826092] [2024-11-24 01:29:41,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947826092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:41,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:41,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:41,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317214915] [2024-11-24 01:29:41,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:41,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:41,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:41,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:41,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:41,396 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-24 01:29:41,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:41,493 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2024-11-24 01:29:41,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:41,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-24 01:29:41,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:41,505 INFO L225 Difference]: With dead ends: 52 [2024-11-24 01:29:41,506 INFO L226 Difference]: Without dead ends: 24 [2024-11-24 01:29:41,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:41,514 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:41,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 37 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:41,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-24 01:29:41,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2024-11-24 01:29:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 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) [2024-11-24 01:29:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-24 01:29:41,559 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2024-11-24 01:29:41,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:41,560 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-24 01:29:41,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-24 01:29:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-24 01:29:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 01:29:41,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:41,561 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 01:29:41,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:29:41,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:41,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:41,563 INFO L85 PathProgramCache]: Analyzing trace with hash 889510762, now seen corresponding path program 1 times [2024-11-24 01:29:41,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:41,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300256017] [2024-11-24 01:29:41,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:41,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:41,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:41,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300256017] [2024-11-24 01:29:41,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300256017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:41,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:41,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:41,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845532404] [2024-11-24 01:29:41,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:41,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:41,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:41,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:41,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:41,616 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:29:41,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:41,662 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2024-11-24 01:29:41,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:41,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-24 01:29:41,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:41,665 INFO L225 Difference]: With dead ends: 23 [2024-11-24 01:29:41,665 INFO L226 Difference]: Without dead ends: 22 [2024-11-24 01:29:41,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:41,667 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:41,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:29:41,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-24 01:29:41,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-24 01:29:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 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) [2024-11-24 01:29:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-11-24 01:29:41,674 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 6 [2024-11-24 01:29:41,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:41,674 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-11-24 01:29:41,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:29:41,675 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-11-24 01:29:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 01:29:41,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:41,675 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:41,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:29:41,676 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:41,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:41,677 INFO L85 PathProgramCache]: Analyzing trace with hash 121352111, now seen corresponding path program 1 times [2024-11-24 01:29:41,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:41,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476055222] [2024-11-24 01:29:41,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:41,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:41,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:41,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:41,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476055222] [2024-11-24 01:29:41,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476055222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:41,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:41,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:29:41,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709634938] [2024-11-24 01:29:41,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:41,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:29:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:41,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:29:41,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:29:41,772 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-24 01:29:41,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:41,892 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-11-24 01:29:41,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:29:41,893 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-24 01:29:41,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:41,893 INFO L225 Difference]: With dead ends: 44 [2024-11-24 01:29:41,894 INFO L226 Difference]: Without dead ends: 42 [2024-11-24 01:29:41,894 INFO L434 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 [2024-11-24 01:29:41,895 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:41,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:41,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-24 01:29:41,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2024-11-24 01:29:41,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 34 states have internal predecessors, (45), 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) [2024-11-24 01:29:41,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2024-11-24 01:29:41,904 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 8 [2024-11-24 01:29:41,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:41,904 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2024-11-24 01:29:41,904 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), 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) [2024-11-24 01:29:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-11-24 01:29:41,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 01:29:41,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:41,905 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:41,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:29:41,905 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:41,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:41,906 INFO L85 PathProgramCache]: Analyzing trace with hash 121352184, now seen corresponding path program 1 times [2024-11-24 01:29:41,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033663574] [2024-11-24 01:29:41,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:41,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:42,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:42,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:42,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033663574] [2024-11-24 01:29:42,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033663574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:42,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:42,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:29:42,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350851897] [2024-11-24 01:29:42,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:42,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:29:42,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:42,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:29:42,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:29:42,055 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-24 01:29:42,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:42,269 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2024-11-24 01:29:42,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:29:42,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-24 01:29:42,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:42,274 INFO L225 Difference]: With dead ends: 53 [2024-11-24 01:29:42,274 INFO L226 Difference]: Without dead ends: 52 [2024-11-24 01:29:42,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:29:42,278 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:42,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 27 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:42,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-24 01:29:42,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2024-11-24 01:29:42,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.564102564102564) internal successors, (61), 45 states have internal predecessors, (61), 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) [2024-11-24 01:29:42,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2024-11-24 01:29:42,299 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 8 [2024-11-24 01:29:42,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:42,300 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2024-11-24 01:29:42,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-24 01:29:42,303 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2024-11-24 01:29:42,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 01:29:42,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:42,303 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:42,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:29:42,304 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:42,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:42,307 INFO L85 PathProgramCache]: Analyzing trace with hash -533051794, now seen corresponding path program 1 times [2024-11-24 01:29:42,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:42,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915452460] [2024-11-24 01:29:42,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:42,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:42,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:42,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915452460] [2024-11-24 01:29:42,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915452460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:42,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:42,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:29:42,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886938008] [2024-11-24 01:29:42,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:42,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:29:42,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:42,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:29:42,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:29:42,415 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-24 01:29:42,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:42,495 INFO L93 Difference]: Finished difference Result 92 states and 133 transitions. [2024-11-24 01:29:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:29:42,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-24 01:29:42,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:42,497 INFO L225 Difference]: With dead ends: 92 [2024-11-24 01:29:42,497 INFO L226 Difference]: Without dead ends: 91 [2024-11-24 01:29:42,498 INFO L434 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 [2024-11-24 01:29:42,499 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:42,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 27 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:42,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-24 01:29:42,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2024-11-24 01:29:42,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 77 states have (on average 1.5454545454545454) internal successors, (119), 83 states have internal predecessors, (119), 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) [2024-11-24 01:29:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 119 transitions. [2024-11-24 01:29:42,515 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 119 transitions. Word has length 9 [2024-11-24 01:29:42,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:42,516 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 119 transitions. [2024-11-24 01:29:42,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-24 01:29:42,516 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 119 transitions. [2024-11-24 01:29:42,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 01:29:42,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:42,516 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:42,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:29:42,517 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:42,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:42,518 INFO L85 PathProgramCache]: Analyzing trace with hash -533049520, now seen corresponding path program 1 times [2024-11-24 01:29:42,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:42,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299675312] [2024-11-24 01:29:42,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:42,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:42,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:42,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299675312] [2024-11-24 01:29:42,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299675312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:42,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:42,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:29:42,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589774028] [2024-11-24 01:29:42,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:42,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:29:42,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:42,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:29:42,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:29:42,582 INFO L87 Difference]: Start difference. First operand 84 states and 119 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-24 01:29:42,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:42,668 INFO L93 Difference]: Finished difference Result 89 states and 123 transitions. [2024-11-24 01:29:42,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:29:42,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-24 01:29:42,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:42,670 INFO L225 Difference]: With dead ends: 89 [2024-11-24 01:29:42,670 INFO L226 Difference]: Without dead ends: 88 [2024-11-24 01:29:42,670 INFO L434 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 [2024-11-24 01:29:42,671 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:42,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:42,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-24 01:29:42,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2024-11-24 01:29:42,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 85 states have internal predecessors, (121), 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) [2024-11-24 01:29:42,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2024-11-24 01:29:42,689 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 9 [2024-11-24 01:29:42,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:42,690 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2024-11-24 01:29:42,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-24 01:29:42,690 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2024-11-24 01:29:42,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-24 01:29:42,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:42,691 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:42,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:29:42,691 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:42,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:42,692 INFO L85 PathProgramCache]: Analyzing trace with hash 655263633, now seen corresponding path program 1 times [2024-11-24 01:29:42,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:42,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425660959] [2024-11-24 01:29:42,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:42,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:42,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:42,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425660959] [2024-11-24 01:29:42,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425660959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:42,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:42,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:29:42,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466626753] [2024-11-24 01:29:42,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:42,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:29:42,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:42,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:29:42,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:29:42,750 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-24 01:29:42,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:42,804 INFO L93 Difference]: Finished difference Result 86 states and 121 transitions. [2024-11-24 01:29:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:29:42,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-24 01:29:42,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:42,810 INFO L225 Difference]: With dead ends: 86 [2024-11-24 01:29:42,810 INFO L226 Difference]: Without dead ends: 85 [2024-11-24 01:29:42,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:29:42,811 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:42,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:29:42,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-24 01:29:42,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-24 01:29:42,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.4556962025316456) internal successors, (115), 84 states have internal predecessors, (115), 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) [2024-11-24 01:29:42,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 115 transitions. [2024-11-24 01:29:42,842 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 115 transitions. Word has length 10 [2024-11-24 01:29:42,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:42,842 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 115 transitions. [2024-11-24 01:29:42,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-24 01:29:42,842 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 115 transitions. [2024-11-24 01:29:42,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 01:29:42,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:42,843 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:42,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:29:42,843 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:42,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1161663792, now seen corresponding path program 1 times [2024-11-24 01:29:42,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:42,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892882195] [2024-11-24 01:29:42,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:42,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:42,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:42,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892882195] [2024-11-24 01:29:42,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892882195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:42,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:42,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:29:42,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129013223] [2024-11-24 01:29:42,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:42,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:29:42,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:42,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:29:42,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:42,903 INFO L87 Difference]: Start difference. First operand 85 states and 115 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-24 01:29:42,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:42,929 INFO L93 Difference]: Finished difference Result 85 states and 115 transitions. [2024-11-24 01:29:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:29:42,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-24 01:29:42,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:42,933 INFO L225 Difference]: With dead ends: 85 [2024-11-24 01:29:42,934 INFO L226 Difference]: Without dead ends: 84 [2024-11-24 01:29:42,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:29:42,935 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:42,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:29:42,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-24 01:29:42,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-24 01:29:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 79 states have (on average 1.379746835443038) internal successors, (109), 83 states have internal predecessors, (109), 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) [2024-11-24 01:29:42,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2024-11-24 01:29:42,959 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 11 [2024-11-24 01:29:42,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:42,959 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2024-11-24 01:29:42,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-24 01:29:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2024-11-24 01:29:42,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 01:29:42,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:42,960 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:42,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:29:42,960 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:42,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:42,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1917179296, now seen corresponding path program 1 times [2024-11-24 01:29:42,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:42,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023151343] [2024-11-24 01:29:42,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:42,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:43,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:29:43,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:43,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023151343] [2024-11-24 01:29:43,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023151343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:43,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:29:43,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:29:43,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549504845] [2024-11-24 01:29:43,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:43,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:29:43,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:43,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:29:43,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:29:43,066 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-24 01:29:43,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:43,136 INFO L93 Difference]: Finished difference Result 98 states and 132 transitions. [2024-11-24 01:29:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:29:43,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-24 01:29:43,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:43,138 INFO L225 Difference]: With dead ends: 98 [2024-11-24 01:29:43,138 INFO L226 Difference]: Without dead ends: 96 [2024-11-24 01:29:43,138 INFO L434 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 [2024-11-24 01:29:43,139 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:43,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 13 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:43,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-24 01:29:43,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2024-11-24 01:29:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.35) internal successors, (108), 83 states have internal predecessors, (108), 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) [2024-11-24 01:29:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2024-11-24 01:29:43,156 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 14 [2024-11-24 01:29:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:43,156 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2024-11-24 01:29:43,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-24 01:29:43,156 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2024-11-24 01:29:43,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 01:29:43,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:43,157 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:43,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:29:43,157 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:43,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:43,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1917179223, now seen corresponding path program 1 times [2024-11-24 01:29:43,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:43,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509897502] [2024-11-24 01:29:43,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:43,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:43,245 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:43,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:43,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509897502] [2024-11-24 01:29:43,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509897502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:43,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776686755] [2024-11-24 01:29:43,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:43,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:43,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:43,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:43,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:29:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:43,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:29:43,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:43,473 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:43,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:43,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776686755] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:43,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:43,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-24 01:29:43,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084503871] [2024-11-24 01:29:43,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:43,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:29:43,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:43,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:29:43,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:29:43,611 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 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) [2024-11-24 01:29:44,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:44,284 INFO L93 Difference]: Finished difference Result 205 states and 281 transitions. [2024-11-24 01:29:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:29:44,286 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-24 01:29:44,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:44,287 INFO L225 Difference]: With dead ends: 205 [2024-11-24 01:29:44,288 INFO L226 Difference]: Without dead ends: 203 [2024-11-24 01:29:44,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=241, Invalid=515, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:29:44,289 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 125 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:44,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 30 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:29:44,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-24 01:29:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 110. [2024-11-24 01:29:44,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 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) [2024-11-24 01:29:44,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2024-11-24 01:29:44,332 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 14 [2024-11-24 01:29:44,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:44,332 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2024-11-24 01:29:44,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 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) [2024-11-24 01:29:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2024-11-24 01:29:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-24 01:29:44,333 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:44,333 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-24 01:29:44,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:29:44,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 01:29:44,534 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:44,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:44,536 INFO L85 PathProgramCache]: Analyzing trace with hash 696986303, now seen corresponding path program 1 times [2024-11-24 01:29:44,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:44,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552459248] [2024-11-24 01:29:44,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:44,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:44,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552459248] [2024-11-24 01:29:44,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552459248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837884062] [2024-11-24 01:29:44,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:44,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:44,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:44,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:44,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:29:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:44,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:29:44,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:44,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:45,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837884062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:45,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:45,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-24 01:29:45,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080970586] [2024-11-24 01:29:45,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:45,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:29:45,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:45,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:29:45,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:29:45,045 INFO L87 Difference]: Start difference. First operand 110 states and 137 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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) [2024-11-24 01:29:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:45,452 INFO L93 Difference]: Finished difference Result 223 states and 287 transitions. [2024-11-24 01:29:45,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:29:45,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-24 01:29:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:45,455 INFO L225 Difference]: With dead ends: 223 [2024-11-24 01:29:45,455 INFO L226 Difference]: Without dead ends: 222 [2024-11-24 01:29:45,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=243, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:29:45,457 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 96 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:45,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 37 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:29:45,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-24 01:29:45,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 170. [2024-11-24 01:29:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 167 states have (on average 1.2455089820359282) internal successors, (208), 169 states have internal predecessors, (208), 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) [2024-11-24 01:29:45,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 208 transitions. [2024-11-24 01:29:45,509 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 208 transitions. Word has length 15 [2024-11-24 01:29:45,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:45,509 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 208 transitions. [2024-11-24 01:29:45,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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) [2024-11-24 01:29:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 208 transitions. [2024-11-24 01:29:45,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-24 01:29:45,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:45,510 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:45,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:29:45,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:45,711 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:45,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:45,712 INFO L85 PathProgramCache]: Analyzing trace with hash 747601582, now seen corresponding path program 1 times [2024-11-24 01:29:45,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:45,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920916656] [2024-11-24 01:29:45,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:45,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:45,810 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:45,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:45,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920916656] [2024-11-24 01:29:45,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920916656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:45,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766618890] [2024-11-24 01:29:45,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:45,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:45,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:45,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:45,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:29:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:45,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:29:45,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:45,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:45,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766618890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:45,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:45,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-24 01:29:45,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795370375] [2024-11-24 01:29:45,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:45,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:29:45,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:45,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:29:45,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:29:45,996 INFO L87 Difference]: Start difference. First operand 170 states and 208 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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) [2024-11-24 01:29:46,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:46,150 INFO L93 Difference]: Finished difference Result 372 states and 473 transitions. [2024-11-24 01:29:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:29:46,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-24 01:29:46,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:46,154 INFO L225 Difference]: With dead ends: 372 [2024-11-24 01:29:46,154 INFO L226 Difference]: Without dead ends: 371 [2024-11-24 01:29:46,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:29:46,158 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 37 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:46,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 43 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:46,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-24 01:29:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 277. [2024-11-24 01:29:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 274 states have (on average 1.2372262773722629) internal successors, (339), 276 states have internal predecessors, (339), 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) [2024-11-24 01:29:46,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 339 transitions. [2024-11-24 01:29:46,207 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 339 transitions. Word has length 19 [2024-11-24 01:29:46,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:46,208 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 339 transitions. [2024-11-24 01:29:46,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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) [2024-11-24 01:29:46,209 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 339 transitions. [2024-11-24 01:29:46,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-24 01:29:46,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:46,212 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-24 01:29:46,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:29:46,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:46,414 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:46,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:46,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1991922945, now seen corresponding path program 1 times [2024-11-24 01:29:46,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:46,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62120598] [2024-11-24 01:29:46,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:46,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:29:46,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:46,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62120598] [2024-11-24 01:29:46,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62120598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:46,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252234996] [2024-11-24 01:29:46,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:46,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:46,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:46,585 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:46,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:29:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:46,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:29:46,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:46,835 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:29:46,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:29:47,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252234996] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:47,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:47,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2024-11-24 01:29:47,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523864300] [2024-11-24 01:29:47,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:47,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:29:47,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:47,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:29:47,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:29:47,048 INFO L87 Difference]: Start difference. First operand 277 states and 339 transitions. Second operand has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 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) [2024-11-24 01:29:47,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:47,969 INFO L93 Difference]: Finished difference Result 509 states and 639 transitions. [2024-11-24 01:29:47,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 01:29:47,969 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-24 01:29:47,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:47,974 INFO L225 Difference]: With dead ends: 509 [2024-11-24 01:29:47,974 INFO L226 Difference]: Without dead ends: 507 [2024-11-24 01:29:47,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=498, Invalid=1142, Unknown=0, NotChecked=0, Total=1640 [2024-11-24 01:29:47,977 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 56 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:47,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 7 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:29:47,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-24 01:29:48,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 311. [2024-11-24 01:29:48,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 308 states have (on average 1.2175324675324675) internal successors, (375), 310 states have internal predecessors, (375), 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) [2024-11-24 01:29:48,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 375 transitions. [2024-11-24 01:29:48,025 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 375 transitions. Word has length 25 [2024-11-24 01:29:48,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:48,027 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 375 transitions. [2024-11-24 01:29:48,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 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) [2024-11-24 01:29:48,028 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 375 transitions. [2024-11-24 01:29:48,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-24 01:29:48,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:48,034 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-24 01:29:48,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:29:48,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:48,235 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:48,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash 151170521, now seen corresponding path program 2 times [2024-11-24 01:29:48,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:48,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483312051] [2024-11-24 01:29:48,236 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:29:48,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:48,263 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:29:48,263 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:29:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:48,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:48,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483312051] [2024-11-24 01:29:48,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483312051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:48,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881286190] [2024-11-24 01:29:48,490 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:29:48,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:48,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:48,493 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:48,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:29:48,537 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:29:48,538 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:29:48,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:29:48,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:48,789 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:48,990 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:48,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881286190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:48,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:48,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-24 01:29:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379487037] [2024-11-24 01:29:48,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:48,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 01:29:48,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:48,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 01:29:48,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:29:48,993 INFO L87 Difference]: Start difference. First operand 311 states and 375 transitions. Second operand has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 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) [2024-11-24 01:29:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:51,260 INFO L93 Difference]: Finished difference Result 1497 states and 1791 transitions. [2024-11-24 01:29:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-24 01:29:51,261 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-24 01:29:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:51,269 INFO L225 Difference]: With dead ends: 1497 [2024-11-24 01:29:51,269 INFO L226 Difference]: Without dead ends: 1496 [2024-11-24 01:29:51,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2863 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1920, Invalid=5390, Unknown=0, NotChecked=0, Total=7310 [2024-11-24 01:29:51,275 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 259 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:51,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 27 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:29:51,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2024-11-24 01:29:51,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 707. [2024-11-24 01:29:51,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 704 states have (on average 1.2144886363636365) internal successors, (855), 706 states have internal predecessors, (855), 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) [2024-11-24 01:29:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 855 transitions. [2024-11-24 01:29:51,399 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 855 transitions. Word has length 30 [2024-11-24 01:29:51,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:51,399 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 855 transitions. [2024-11-24 01:29:51,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 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) [2024-11-24 01:29:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 855 transitions. [2024-11-24 01:29:51,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-24 01:29:51,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:51,402 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2024-11-24 01:29:51,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:29:51,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 01:29:51,606 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:51,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:51,608 INFO L85 PathProgramCache]: Analyzing trace with hash -236969588, now seen corresponding path program 2 times [2024-11-24 01:29:51,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:51,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234661522] [2024-11-24 01:29:51,610 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:29:51,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:51,625 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:29:51,626 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:29:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:51,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:51,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234661522] [2024-11-24 01:29:51,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234661522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:51,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762673615] [2024-11-24 01:29:51,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:29:51,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:51,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:51,853 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:51,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:29:51,906 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:29:51,907 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:29:51,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:29:51,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:52,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:52,619 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:52,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762673615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:52,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:52,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2024-11-24 01:29:52,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410030130] [2024-11-24 01:29:52,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:52,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-24 01:29:52,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:52,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-24 01:29:52,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2024-11-24 01:29:52,625 INFO L87 Difference]: Start difference. First operand 707 states and 855 transitions. Second operand has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 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) [2024-11-24 01:29:54,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:54,598 INFO L93 Difference]: Finished difference Result 1334 states and 1582 transitions. [2024-11-24 01:29:54,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-24 01:29:54,599 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-24 01:29:54,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:54,605 INFO L225 Difference]: With dead ends: 1334 [2024-11-24 01:29:54,605 INFO L226 Difference]: Without dead ends: 1333 [2024-11-24 01:29:54,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1330 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1263, Invalid=2643, Unknown=0, NotChecked=0, Total=3906 [2024-11-24 01:29:54,608 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 470 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:54,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 104 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:29:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-11-24 01:29:54,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 884. [2024-11-24 01:29:54,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 881 states have (on average 1.2088535754824064) internal successors, (1065), 883 states have internal predecessors, (1065), 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) [2024-11-24 01:29:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1065 transitions. [2024-11-24 01:29:54,794 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1065 transitions. Word has length 33 [2024-11-24 01:29:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:54,795 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1065 transitions. [2024-11-24 01:29:54,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 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) [2024-11-24 01:29:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1065 transitions. [2024-11-24 01:29:54,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-24 01:29:54,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:54,798 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2024-11-24 01:29:54,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:29:54,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 01:29:54,999 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:54,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:55,000 INFO L85 PathProgramCache]: Analyzing trace with hash -94506063, now seen corresponding path program 1 times [2024-11-24 01:29:55,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:55,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830593978] [2024-11-24 01:29:55,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:55,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:29:55,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:55,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830593978] [2024-11-24 01:29:55,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830593978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:55,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793302690] [2024-11-24 01:29:55,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:55,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:55,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:55,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:55,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:29:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:55,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:29:55,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:55,259 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:55,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:55,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793302690] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:55,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:55,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 15 [2024-11-24 01:29:55,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414391309] [2024-11-24 01:29:55,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:55,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:29:55,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:55,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:29:55,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:29:55,409 INFO L87 Difference]: Start difference. First operand 884 states and 1065 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 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) [2024-11-24 01:29:56,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:56,495 INFO L93 Difference]: Finished difference Result 3034 states and 3717 transitions. [2024-11-24 01:29:56,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-24 01:29:56,495 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-24 01:29:56,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:56,507 INFO L225 Difference]: With dead ends: 3034 [2024-11-24 01:29:56,508 INFO L226 Difference]: Without dead ends: 2830 [2024-11-24 01:29:56,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=545, Invalid=1015, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:29:56,511 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 245 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:56,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 27 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:29:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2024-11-24 01:29:56,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 458. [2024-11-24 01:29:56,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 456 states have (on average 1.1864035087719298) internal successors, (541), 457 states have internal predecessors, (541), 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) [2024-11-24 01:29:56,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 541 transitions. [2024-11-24 01:29:56,665 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 541 transitions. Word has length 35 [2024-11-24 01:29:56,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:56,666 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 541 transitions. [2024-11-24 01:29:56,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 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) [2024-11-24 01:29:56,666 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 541 transitions. [2024-11-24 01:29:56,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-24 01:29:56,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:56,667 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:56,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:29:56,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 01:29:56,871 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:56,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:56,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2125594414, now seen corresponding path program 2 times [2024-11-24 01:29:56,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:56,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632695261] [2024-11-24 01:29:56,872 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:29:56,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:56,884 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:29:56,884 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:29:57,009 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:57,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:57,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632695261] [2024-11-24 01:29:57,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632695261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:57,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936340974] [2024-11-24 01:29:57,010 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:29:57,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:57,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:57,013 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:57,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:29:57,057 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:29:57,057 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:29:57,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:29:57,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:57,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:57,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936340974] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:57,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:57,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-24 01:29:57,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959800641] [2024-11-24 01:29:57,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:57,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:29:57,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:57,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:29:57,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:29:57,301 INFO L87 Difference]: Start difference. First operand 458 states and 541 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 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) [2024-11-24 01:29:57,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:57,831 INFO L93 Difference]: Finished difference Result 1683 states and 2064 transitions. [2024-11-24 01:29:57,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:29:57,832 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-24 01:29:57,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:57,839 INFO L225 Difference]: With dead ends: 1683 [2024-11-24 01:29:57,839 INFO L226 Difference]: Without dead ends: 1682 [2024-11-24 01:29:57,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:29:57,841 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 146 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:57,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 82 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:29:57,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2024-11-24 01:29:58,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1156. [2024-11-24 01:29:58,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1154 states have (on average 1.1785095320623917) internal successors, (1360), 1155 states have internal predecessors, (1360), 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) [2024-11-24 01:29:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1360 transitions. [2024-11-24 01:29:58,148 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1360 transitions. Word has length 39 [2024-11-24 01:29:58,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:58,149 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1360 transitions. [2024-11-24 01:29:58,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 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) [2024-11-24 01:29:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1360 transitions. [2024-11-24 01:29:58,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 01:29:58,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:58,151 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-24 01:29:58,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 01:29:58,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 01:29:58,352 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:29:58,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:58,353 INFO L85 PathProgramCache]: Analyzing trace with hash 162815560, now seen corresponding path program 3 times [2024-11-24 01:29:58,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:58,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422098732] [2024-11-24 01:29:58,353 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:29:58,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:58,385 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-24 01:29:58,386 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:29:58,698 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:58,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:58,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422098732] [2024-11-24 01:29:58,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422098732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:58,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18881722] [2024-11-24 01:29:58,700 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:29:58,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:58,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:58,702 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:58,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:29:58,761 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-24 01:29:58,761 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:29:58,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:29:58,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:59,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:29:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18881722] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:59,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:59,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 16] total 43 [2024-11-24 01:29:59,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351835875] [2024-11-24 01:29:59,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:59,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-24 01:29:59,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:59,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-24 01:29:59,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1556, Unknown=0, NotChecked=0, Total=1892 [2024-11-24 01:29:59,967 INFO L87 Difference]: Start difference. First operand 1156 states and 1360 transitions. Second operand has 44 states, 43 states have (on average 3.116279069767442) internal successors, (134), 44 states have internal predecessors, (134), 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) [2024-11-24 01:30:11,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:11,643 INFO L93 Difference]: Finished difference Result 7769 states and 9098 transitions. [2024-11-24 01:30:11,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2024-11-24 01:30:11,644 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.116279069767442) internal successors, (134), 44 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-24 01:30:11,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:11,666 INFO L225 Difference]: With dead ends: 7769 [2024-11-24 01:30:11,667 INFO L226 Difference]: Without dead ends: 7768 [2024-11-24 01:30:11,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33518 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=18526, Invalid=49856, Unknown=0, NotChecked=0, Total=68382 [2024-11-24 01:30:11,679 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 985 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 3995 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 4250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 3995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:11,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 30 Invalid, 4250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 3995 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 01:30:11,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7768 states. [2024-11-24 01:30:12,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7768 to 4016. [2024-11-24 01:30:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4016 states, 4014 states have (on average 1.1878425510712507) internal successors, (4768), 4015 states have internal predecessors, (4768), 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) [2024-11-24 01:30:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 4768 transitions. [2024-11-24 01:30:12,651 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 4768 transitions. Word has length 46 [2024-11-24 01:30:12,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:12,652 INFO L471 AbstractCegarLoop]: Abstraction has 4016 states and 4768 transitions. [2024-11-24 01:30:12,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.116279069767442) internal successors, (134), 44 states have internal predecessors, (134), 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) [2024-11-24 01:30:12,652 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 4768 transitions. [2024-11-24 01:30:12,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 01:30:12,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:12,655 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-24 01:30:12,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 01:30:12,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 01:30:12,859 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:30:12,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:12,860 INFO L85 PathProgramCache]: Analyzing trace with hash 853829828, now seen corresponding path program 4 times [2024-11-24 01:30:12,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:12,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096821292] [2024-11-24 01:30:12,860 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:30:12,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:12,882 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:30:12,882 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:30:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:30:13,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:13,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096821292] [2024-11-24 01:30:13,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096821292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:13,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373527388] [2024-11-24 01:30:13,379 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:30:13,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:13,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:13,382 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:13,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:30:13,437 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:30:13,437 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:30:13,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 01:30:13,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:30:14,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:14,893 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:30:14,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373527388] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:30:14,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:30:14,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2024-11-24 01:30:14,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771119631] [2024-11-24 01:30:14,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:14,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-11-24 01:30:14,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:14,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-11-24 01:30:14,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2024-11-24 01:30:14,897 INFO L87 Difference]: Start difference. First operand 4016 states and 4768 transitions. Second operand has 59 states, 58 states have (on average 3.0344827586206895) internal successors, (176), 59 states have internal predecessors, (176), 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) [2024-11-24 01:30:44,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:44,064 INFO L93 Difference]: Finished difference Result 31307 states and 36529 transitions. [2024-11-24 01:30:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 405 states. [2024-11-24 01:30:44,065 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 3.0344827586206895) internal successors, (176), 59 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-24 01:30:44,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:44,149 INFO L225 Difference]: With dead ends: 31307 [2024-11-24 01:30:44,149 INFO L226 Difference]: Without dead ends: 31306 [2024-11-24 01:30:44,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 447 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107584 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=57344, Invalid=143808, Unknown=0, NotChecked=0, Total=201152 [2024-11-24 01:30:44,174 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 2194 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5588 mSolverCounterSat, 810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 6398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 810 IncrementalHoareTripleChecker+Valid, 5588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:44,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 76 Invalid, 6398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [810 Valid, 5588 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-24 01:30:44,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31306 states. [2024-11-24 01:30:49,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31306 to 16726. [2024-11-24 01:30:49,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16726 states, 16724 states have (on average 1.185601530734274) internal successors, (19828), 16725 states have internal predecessors, (19828), 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) [2024-11-24 01:30:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16726 states to 16726 states and 19828 transitions. [2024-11-24 01:30:49,806 INFO L78 Accepts]: Start accepts. Automaton has 16726 states and 19828 transitions. Word has length 60 [2024-11-24 01:30:49,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:49,807 INFO L471 AbstractCegarLoop]: Abstraction has 16726 states and 19828 transitions. [2024-11-24 01:30:49,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 3.0344827586206895) internal successors, (176), 59 states have internal predecessors, (176), 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) [2024-11-24 01:30:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand 16726 states and 19828 transitions. [2024-11-24 01:30:49,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 01:30:49,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:49,811 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2024-11-24 01:30:49,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-24 01:30:50,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:50,012 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:30:50,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1216233335, now seen corresponding path program 5 times [2024-11-24 01:30:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:50,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486884882] [2024-11-24 01:30:50,013 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 01:30:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:50,038 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-24 01:30:50,038 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:30:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:30:50,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:50,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486884882] [2024-11-24 01:30:50,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486884882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:50,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428313678] [2024-11-24 01:30:50,488 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 01:30:50,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:50,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:50,490 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:50,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:30:50,549 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-24 01:30:50,549 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:30:50,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:30:50,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:51,290 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:30:51,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:30:51,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428313678] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:30:51,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:30:51,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 64 [2024-11-24 01:30:51,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490901147] [2024-11-24 01:30:51,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:51,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-11-24 01:30:51,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:51,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-11-24 01:30:51,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=850, Invalid=3310, Unknown=0, NotChecked=0, Total=4160 [2024-11-24 01:30:51,886 INFO L87 Difference]: Start difference. First operand 16726 states and 19828 transitions. Second operand has 65 states, 64 states have (on average 2.84375) internal successors, (182), 65 states have internal predecessors, (182), 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) [2024-11-24 01:31:49,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:49,465 INFO L93 Difference]: Finished difference Result 65678 states and 77100 transitions. [2024-11-24 01:31:49,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 810 states. [2024-11-24 01:31:49,466 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.84375) internal successors, (182), 65 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-24 01:31:49,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:49,662 INFO L225 Difference]: With dead ends: 65678 [2024-11-24 01:31:49,662 INFO L226 Difference]: Without dead ends: 65677 [2024-11-24 01:31:49,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 942 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 860 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400632 ImplicationChecksByTransitivity, 34.1s TimeCoverageRelationStatistics Valid=166251, Invalid=575931, Unknown=0, NotChecked=0, Total=742182 [2024-11-24 01:31:49,712 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 2765 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 10688 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2765 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 11439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 10688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:49,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2765 Valid, 31 Invalid, 11439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 10688 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-24 01:31:49,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65677 states. [2024-11-24 01:31:56,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65677 to 22759. [2024-11-24 01:31:56,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22759 states, 22757 states have (on average 1.1875027464076988) internal successors, (27024), 22758 states have internal predecessors, (27024), 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) [2024-11-24 01:31:56,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22759 states to 22759 states and 27024 transitions. [2024-11-24 01:31:56,604 INFO L78 Accepts]: Start accepts. Automaton has 22759 states and 27024 transitions. Word has length 62 [2024-11-24 01:31:56,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:56,604 INFO L471 AbstractCegarLoop]: Abstraction has 22759 states and 27024 transitions. [2024-11-24 01:31:56,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.84375) internal successors, (182), 65 states have internal predecessors, (182), 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) [2024-11-24 01:31:56,605 INFO L276 IsEmpty]: Start isEmpty. Operand 22759 states and 27024 transitions. [2024-11-24 01:31:56,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-24 01:31:56,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:56,611 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-24 01:31:56,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 01:31:56,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:56,820 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:31:56,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:56,821 INFO L85 PathProgramCache]: Analyzing trace with hash 986729689, now seen corresponding path program 6 times [2024-11-24 01:31:56,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:56,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682656465] [2024-11-24 01:31:56,821 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 01:31:56,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:56,838 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-11-24 01:31:56,838 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:31:57,245 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 303 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:57,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:57,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682656465] [2024-11-24 01:31:57,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682656465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:57,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299083117] [2024-11-24 01:31:57,246 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 01:31:57,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:57,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:57,248 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:57,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:31:57,297 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-11-24 01:31:57,298 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:31:57,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:31:57,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 303 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:57,829 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:58,422 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 303 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:31:58,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299083117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:31:58,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:31:58,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 45 [2024-11-24 01:31:58,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013885576] [2024-11-24 01:31:58,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:58,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-24 01:31:58,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:58,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-24 01:31:58,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=736, Invalid=1334, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 01:31:58,425 INFO L87 Difference]: Start difference. First operand 22759 states and 27024 transitions. Second operand has 46 states, 45 states have (on average 4.5777777777777775) internal successors, (206), 46 states have internal predecessors, (206), 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) [2024-11-24 01:32:05,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:05,942 INFO L93 Difference]: Finished difference Result 28195 states and 33322 transitions. [2024-11-24 01:32:05,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-24 01:32:05,942 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 4.5777777777777775) internal successors, (206), 46 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-24 01:32:05,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:05,984 INFO L225 Difference]: With dead ends: 28195 [2024-11-24 01:32:05,984 INFO L226 Difference]: Without dead ends: 28194 [2024-11-24 01:32:05,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2184 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2302, Invalid=5008, Unknown=0, NotChecked=0, Total=7310 [2024-11-24 01:32:05,993 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 315 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:05,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 106 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:32:06,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28194 states. [2024-11-24 01:32:12,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28194 to 25115. [2024-11-24 01:32:12,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25115 states, 25113 states have (on average 1.1886274041333174) internal successors, (29850), 25114 states have internal predecessors, (29850), 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) [2024-11-24 01:32:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25115 states to 25115 states and 29850 transitions. [2024-11-24 01:32:12,177 INFO L78 Accepts]: Start accepts. Automaton has 25115 states and 29850 transitions. Word has length 70 [2024-11-24 01:32:12,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:12,177 INFO L471 AbstractCegarLoop]: Abstraction has 25115 states and 29850 transitions. [2024-11-24 01:32:12,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 4.5777777777777775) internal successors, (206), 46 states have internal predecessors, (206), 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) [2024-11-24 01:32:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand 25115 states and 29850 transitions. [2024-11-24 01:32:12,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-24 01:32:12,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:12,190 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2024-11-24 01:32:12,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 01:32:12,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:12,394 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-24 01:32:12,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:12,395 INFO L85 PathProgramCache]: Analyzing trace with hash 170443110, now seen corresponding path program 7 times [2024-11-24 01:32:12,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:12,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21984850] [2024-11-24 01:32:12,395 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 01:32:12,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:32:12,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:12,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21984850] [2024-11-24 01:32:12,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21984850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:32:12,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484265847] [2024-11-24 01:32:12,988 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 01:32:12,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:12,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:12,990 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:12,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b683a3a5-3a85-43fa-917f-635b67b52a1d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 01:32:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:13,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 01:32:13,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:32:13,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:32:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:32:14,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484265847] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:32:14,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:32:14,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 19, 19] total 64 [2024-11-24 01:32:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572280774] [2024-11-24 01:32:14,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:32:14,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-11-24 01:32:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:14,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-11-24 01:32:14,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=3289, Unknown=0, NotChecked=0, Total=4160 [2024-11-24 01:32:14,454 INFO L87 Difference]: Start difference. First operand 25115 states and 29850 transitions. Second operand has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 states have internal predecessors, (230), 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)