./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-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_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/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_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/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_703356a3-0012-4f95-82fb-b8e32a80a0d6/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 de331d1f778f147a4d32c0286c0018cb5b5cf61f2b6c0952b6bed68b0f715eaf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:34:52,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:34:52,330 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-24 01:34:52,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:34:52,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:34:52,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:34:52,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:34:52,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:34:52,378 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:34:52,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:34:52,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:34:52,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:34:52,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:34:52,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:34:52,380 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:34:52,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:34:52,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:34:52,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:34:52,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:34:52,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:34:52,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:34:52,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:34:52,381 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 01:34:52,381 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:34:52,381 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:34:52,381 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:34:52,381 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:34:52,381 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:34:52,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:34:52,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:34:52,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:34:52,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:34:52,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:34:52,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:34:52,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:34:52,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:34:52,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:34:52,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:34:52,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:34:52,383 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:34:52,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:34:52,383 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:34:52,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:34:52,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:34:52,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:34:52,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:34:52,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:34:52,385 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_703356a3-0012-4f95-82fb-b8e32a80a0d6/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 -> de331d1f778f147a4d32c0286c0018cb5b5cf61f2b6c0952b6bed68b0f715eaf [2024-11-24 01:34:52,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:34:52,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:34:52,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:34:52,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:34:52,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:34:52,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c [2024-11-24 01:34:55,723 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/data/b89af3533/81cb05e08e55497ba0fda75feb95af44/FLAG57d8e319b [2024-11-24 01:34:55,982 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:34:55,983 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1.c [2024-11-24 01:34:56,011 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/data/b89af3533/81cb05e08e55497ba0fda75feb95af44/FLAG57d8e319b [2024-11-24 01:34:56,046 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/data/b89af3533/81cb05e08e55497ba0fda75feb95af44 [2024-11-24 01:34:56,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:34:56,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:34:56,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:34:56,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:34:56,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:34:56,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cbabe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56, skipping insertion in model container [2024-11-24 01:34:56,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:34:56,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:34:56,265 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:34:56,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:34:56,297 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:34:56,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56 WrapperNode [2024-11-24 01:34:56,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:34:56,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:34:56,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:34:56,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:34:56,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,326 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9 [2024-11-24 01:34:56,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:34:56,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:34:56,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:34:56,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:34:56,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,338 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,344 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-24 01:34:56,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,348 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:34:56,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:34:56,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:34:56,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:34:56,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (1/1) ... [2024-11-24 01:34:56,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:34:56,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:56,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:34:56,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:34:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-24 01:34:56,448 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-24 01:34:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:34:56,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:34:56,506 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:34:56,508 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:34:56,686 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-24 01:34:56,687 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:34:56,698 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:34:56,698 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:34:56,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:34:56 BoogieIcfgContainer [2024-11-24 01:34:56,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:34:56,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:34:56,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:34:56,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:34:56,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:34:56" (1/3) ... [2024-11-24 01:34:56,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59754917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:34:56, skipping insertion in model container [2024-11-24 01:34:56,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:56" (2/3) ... [2024-11-24 01:34:56,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59754917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:34:56, skipping insertion in model container [2024-11-24 01:34:56,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:34:56" (3/3) ... [2024-11-24 01:34:56,714 INFO L128 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig1.c [2024-11-24 01:34:56,731 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:34:56,732 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG HarrisLalNoriRajamani-SAS2010-Fig1.c that has 2 procedures, 32 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2024-11-24 01:34:56,811 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:34:56,830 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;@ccb1f73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:34:56,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-24 01:34:56,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 20 states have (on average 1.75) internal successors, (35), 29 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 01:34:56,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 01:34:56,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:56,843 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:56,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:56,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:56,848 INFO L85 PathProgramCache]: Analyzing trace with hash -638277709, now seen corresponding path program 1 times [2024-11-24 01:34:56,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:56,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553858549] [2024-11-24 01:34:56,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:56,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:57,076 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 01:34:57,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:57,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553858549] [2024-11-24 01:34:57,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553858549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:57,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:57,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:34:57,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369883348] [2024-11-24 01:34:57,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:57,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:57,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:57,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:57,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:34:57,115 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.75) internal successors, (35), 29 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:57,183 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2024-11-24 01:34:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:57,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 01:34:57,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:57,198 INFO L225 Difference]: With dead ends: 67 [2024-11-24 01:34:57,198 INFO L226 Difference]: Without dead ends: 39 [2024-11-24 01:34:57,202 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 01:34:57,207 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:57,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 52 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:57,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-24 01:34:57,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2024-11-24 01:34:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.6) internal successors, (40), 32 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-24 01:34:57,253 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 8 [2024-11-24 01:34:57,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:57,254 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-24 01:34:57,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,254 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-24 01:34:57,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 01:34:57,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:57,255 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:57,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:34:57,255 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:57,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:57,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1688227548, now seen corresponding path program 1 times [2024-11-24 01:34:57,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:57,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658804993] [2024-11-24 01:34:57,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:57,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:57,320 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 01:34:57,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:57,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658804993] [2024-11-24 01:34:57,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658804993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:57,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:57,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:34:57,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225124820] [2024-11-24 01:34:57,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:57,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:34:57,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:57,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:34:57,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:34:57,323 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:57,363 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2024-11-24 01:34:57,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:34:57,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 01:34:57,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:57,366 INFO L225 Difference]: With dead ends: 60 [2024-11-24 01:34:57,366 INFO L226 Difference]: Without dead ends: 58 [2024-11-24 01:34:57,366 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 01:34:57,369 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:57,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 40 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-24 01:34:57,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2024-11-24 01:34:57,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.6) internal successors, (72), 52 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2024-11-24 01:34:57,381 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 9 [2024-11-24 01:34:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:57,381 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2024-11-24 01:34:57,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,381 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2024-11-24 01:34:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 01:34:57,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:57,382 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:57,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:34:57,382 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:57,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1108805789, now seen corresponding path program 1 times [2024-11-24 01:34:57,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:57,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393974709] [2024-11-24 01:34:57,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:57,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:57,515 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 01:34:57,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:57,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393974709] [2024-11-24 01:34:57,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393974709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:57,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:57,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:34:57,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276573801] [2024-11-24 01:34:57,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:57,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:57,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:57,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:57,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:34:57,517 INFO L87 Difference]: Start difference. First operand 54 states and 74 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:57,633 INFO L93 Difference]: Finished difference Result 107 states and 146 transitions. [2024-11-24 01:34:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:57,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 01:34:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:57,636 INFO L225 Difference]: With dead ends: 107 [2024-11-24 01:34:57,636 INFO L226 Difference]: Without dead ends: 106 [2024-11-24 01:34:57,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:34:57,637 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 42 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:57,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 86 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:34:57,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-24 01:34:57,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2024-11-24 01:34:57,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 87 states have (on average 1.5632183908045978) internal successors, (136), 93 states have internal predecessors, (136), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-11-24 01:34:57,651 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 11 [2024-11-24 01:34:57,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:57,652 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-11-24 01:34:57,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,652 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-11-24 01:34:57,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 01:34:57,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:57,652 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:57,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:34:57,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:57,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:57,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1108805438, now seen corresponding path program 1 times [2024-11-24 01:34:57,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:57,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775351322] [2024-11-24 01:34:57,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:57,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:57,735 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 01:34:57,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:57,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775351322] [2024-11-24 01:34:57,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775351322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:57,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:57,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:34:57,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259065664] [2024-11-24 01:34:57,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:57,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:57,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:57,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:57,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:34:57,737 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:57,814 INFO L93 Difference]: Finished difference Result 102 states and 138 transitions. [2024-11-24 01:34:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:57,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 01:34:57,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:57,816 INFO L225 Difference]: With dead ends: 102 [2024-11-24 01:34:57,816 INFO L226 Difference]: Without dead ends: 101 [2024-11-24 01:34:57,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:34:57,817 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 40 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:57,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 87 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:57,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-24 01:34:57,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2024-11-24 01:34:57,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 87 states have (on average 1.5172413793103448) internal successors, (132), 93 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 134 transitions. [2024-11-24 01:34:57,829 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 134 transitions. Word has length 11 [2024-11-24 01:34:57,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:57,830 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 134 transitions. [2024-11-24 01:34:57,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 134 transitions. [2024-11-24 01:34:57,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 01:34:57,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:57,831 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:57,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:34:57,831 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:57,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:57,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1249418788, now seen corresponding path program 1 times [2024-11-24 01:34:57,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:57,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55807238] [2024-11-24 01:34:57,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:57,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:57,935 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 01:34:57,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:57,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55807238] [2024-11-24 01:34:57,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55807238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:57,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:57,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:34:57,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627838181] [2024-11-24 01:34:57,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:57,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:57,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:57,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:57,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:34:57,937 INFO L87 Difference]: Start difference. First operand 96 states and 134 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:58,015 INFO L93 Difference]: Finished difference Result 104 states and 142 transitions. [2024-11-24 01:34:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:58,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 01:34:58,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:58,020 INFO L225 Difference]: With dead ends: 104 [2024-11-24 01:34:58,020 INFO L226 Difference]: Without dead ends: 103 [2024-11-24 01:34:58,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:34:58,022 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 42 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:58,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 46 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:58,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-24 01:34:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2024-11-24 01:34:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 87 states have (on average 1.471264367816092) internal successors, (128), 92 states have internal predecessors, (128), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 130 transitions. [2024-11-24 01:34:58,053 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 130 transitions. Word has length 11 [2024-11-24 01:34:58,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:58,054 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 130 transitions. [2024-11-24 01:34:58,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,054 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 130 transitions. [2024-11-24 01:34:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 01:34:58,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:58,055 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:58,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:34:58,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:58,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:58,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1249419139, now seen corresponding path program 1 times [2024-11-24 01:34:58,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:58,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453360650] [2024-11-24 01:34:58,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:58,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:58,126 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 01:34:58,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:58,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453360650] [2024-11-24 01:34:58,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453360650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:58,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:58,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:34:58,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562489238] [2024-11-24 01:34:58,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:58,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:58,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:58,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:58,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:34:58,128 INFO L87 Difference]: Start difference. First operand 95 states and 130 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:58,191 INFO L93 Difference]: Finished difference Result 95 states and 130 transitions. [2024-11-24 01:34:58,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:58,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 01:34:58,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:58,199 INFO L225 Difference]: With dead ends: 95 [2024-11-24 01:34:58,199 INFO L226 Difference]: Without dead ends: 94 [2024-11-24 01:34:58,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:34:58,200 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 40 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:58,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 46 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:58,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-24 01:34:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 52. [2024-11-24 01:34:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 50 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2024-11-24 01:34:58,218 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 11 [2024-11-24 01:34:58,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:58,219 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2024-11-24 01:34:58,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,219 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2024-11-24 01:34:58,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 01:34:58,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:58,220 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:58,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:34:58,220 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:58,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:58,221 INFO L85 PathProgramCache]: Analyzing trace with hash -80113810, now seen corresponding path program 1 times [2024-11-24 01:34:58,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:58,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630019388] [2024-11-24 01:34:58,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:58,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:58,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:34:58,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:58,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630019388] [2024-11-24 01:34:58,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630019388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:58,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275209486] [2024-11-24 01:34:58,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:58,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:58,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:58,305 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:58,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:34:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:58,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:34:58,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:34:58,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:34:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:34:58,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275209486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:34:58,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:34:58,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-24 01:34:58,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693674347] [2024-11-24 01:34:58,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:34:58,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:34:58,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:58,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:34:58,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:34:58,454 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:58,562 INFO L93 Difference]: Finished difference Result 123 states and 158 transitions. [2024-11-24 01:34:58,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:34:58,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-24 01:34:58,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:58,565 INFO L225 Difference]: With dead ends: 123 [2024-11-24 01:34:58,565 INFO L226 Difference]: Without dead ends: 121 [2024-11-24 01:34:58,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:34:58,566 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 48 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:58,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 84 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:34:58,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-24 01:34:58,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 61. [2024-11-24 01:34:58,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 59 states have internal predecessors, (76), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2024-11-24 01:34:58,585 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 12 [2024-11-24 01:34:58,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:58,585 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2024-11-24 01:34:58,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,586 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2024-11-24 01:34:58,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 01:34:58,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:58,587 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:58,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:34:58,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:58,792 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:58,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:58,793 INFO L85 PathProgramCache]: Analyzing trace with hash -13241024, now seen corresponding path program 1 times [2024-11-24 01:34:58,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:58,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728088365] [2024-11-24 01:34:58,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:58,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:58,875 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 01:34:58,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:58,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728088365] [2024-11-24 01:34:58,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728088365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:58,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:58,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:34:58,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653004620] [2024-11-24 01:34:58,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:58,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:34:58,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:58,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:34:58,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:34:58,876 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:58,925 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2024-11-24 01:34:58,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:34:58,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-24 01:34:58,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:58,926 INFO L225 Difference]: With dead ends: 62 [2024-11-24 01:34:58,926 INFO L226 Difference]: Without dead ends: 61 [2024-11-24 01:34:58,927 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 01:34:58,927 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 37 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:58,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 37 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:58,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-24 01:34:58,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-24 01:34:58,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 59 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2024-11-24 01:34:58,949 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 12 [2024-11-24 01:34:58,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:58,949 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2024-11-24 01:34:58,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2024-11-24 01:34:58,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 01:34:58,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:58,950 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:58,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:34:58,950 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:58,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:58,951 INFO L85 PathProgramCache]: Analyzing trace with hash -13230133, now seen corresponding path program 1 times [2024-11-24 01:34:58,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:58,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878953660] [2024-11-24 01:34:58,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:58,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:59,025 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 01:34:59,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:59,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878953660] [2024-11-24 01:34:59,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878953660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:59,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:59,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:34:59,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120677217] [2024-11-24 01:34:59,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:59,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:34:59,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:59,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:34:59,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:34:59,026 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:59,078 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2024-11-24 01:34:59,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:34:59,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-24 01:34:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:59,079 INFO L225 Difference]: With dead ends: 76 [2024-11-24 01:34:59,079 INFO L226 Difference]: Without dead ends: 75 [2024-11-24 01:34:59,080 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 01:34:59,082 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 35 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:59,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 38 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:59,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-24 01:34:59,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2024-11-24 01:34:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.34375) internal successors, (86), 69 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:59,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2024-11-24 01:34:59,104 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 12 [2024-11-24 01:34:59,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:59,104 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2024-11-24 01:34:59,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:59,105 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2024-11-24 01:34:59,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-24 01:34:59,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:59,108 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:59,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:34:59,108 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:59,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:59,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1448083740, now seen corresponding path program 1 times [2024-11-24 01:34:59,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:59,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410110745] [2024-11-24 01:34:59,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:59,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:59,184 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 01:34:59,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:59,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410110745] [2024-11-24 01:34:59,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410110745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:59,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369567547] [2024-11-24 01:34:59,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:59,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:59,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:59,187 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:59,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:34:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:59,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:34:59,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:59,340 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:34:59,340 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:34:59,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369567547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:59,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:34:59,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 01:34:59,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648730549] [2024-11-24 01:34:59,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:59,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:59,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:59,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:59,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:34:59,342 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:59,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:59,408 INFO L93 Difference]: Finished difference Result 89 states and 112 transitions. [2024-11-24 01:34:59,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:59,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-24 01:34:59,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:59,409 INFO L225 Difference]: With dead ends: 89 [2024-11-24 01:34:59,409 INFO L226 Difference]: Without dead ends: 88 [2024-11-24 01:34:59,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:34:59,410 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 32 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:59,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 45 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:59,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-24 01:34:59,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 60. [2024-11-24 01:34:59,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 58 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2024-11-24 01:34:59,424 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 17 [2024-11-24 01:34:59,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:59,425 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2024-11-24 01:34:59,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:59,425 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2024-11-24 01:34:59,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-24 01:34:59,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:59,428 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:59,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:34:59,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 01:34:59,629 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:34:59,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:59,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1581220134, now seen corresponding path program 1 times [2024-11-24 01:34:59,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:59,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390370069] [2024-11-24 01:34:59,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:59,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:59,685 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 01:34:59,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:59,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390370069] [2024-11-24 01:34:59,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390370069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:59,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621514425] [2024-11-24 01:34:59,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:59,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:59,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:59,687 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:59,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:34:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:59,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:34:59,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:59,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:34:59,863 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:34:59,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621514425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:59,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:34:59,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 01:34:59,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503239071] [2024-11-24 01:34:59,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:59,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:34:59,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:59,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:34:59,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:34:59,864 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:59,913 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2024-11-24 01:34:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:34:59,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 01:34:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:59,915 INFO L225 Difference]: With dead ends: 60 [2024-11-24 01:34:59,915 INFO L226 Difference]: Without dead ends: 59 [2024-11-24 01:34:59,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:34:59,916 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 33 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:59,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 41 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:34:59,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-24 01:34:59,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-24 01:34:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 57 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:59,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2024-11-24 01:34:59,929 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 19 [2024-11-24 01:34:59,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:59,930 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2024-11-24 01:34:59,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:34:59,930 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2024-11-24 01:34:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-24 01:34:59,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:59,933 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:59,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:35:00,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-24 01:35:00,134 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:35:00,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:00,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1773183829, now seen corresponding path program 1 times [2024-11-24 01:35:00,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:00,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112479665] [2024-11-24 01:35:00,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:00,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:00,197 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 01:35:00,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:00,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112479665] [2024-11-24 01:35:00,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112479665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:35:00,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185648733] [2024-11-24 01:35:00,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:00,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:00,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:35:00,200 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:35:00,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:35:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:00,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:35:00,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:35:00,274 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 01:35:00,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:35:00,325 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 01:35:00,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185648733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:35:00,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:35:00,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-24 01:35:00,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499760814] [2024-11-24 01:35:00,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:35:00,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:35:00,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:00,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:35:00,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:35:00,329 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:00,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:00,378 INFO L93 Difference]: Finished difference Result 114 states and 139 transitions. [2024-11-24 01:35:00,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:35:00,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-24 01:35:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:00,379 INFO L225 Difference]: With dead ends: 114 [2024-11-24 01:35:00,380 INFO L226 Difference]: Without dead ends: 113 [2024-11-24 01:35:00,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:35:00,381 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:00,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 61 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-24 01:35:00,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-24 01:35:00,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 108 states have (on average 1.212962962962963) internal successors, (131), 111 states have internal predecessors, (131), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 133 transitions. [2024-11-24 01:35:00,398 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 133 transitions. Word has length 20 [2024-11-24 01:35:00,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:00,399 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 133 transitions. [2024-11-24 01:35:00,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 133 transitions. [2024-11-24 01:35:00,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-24 01:35:00,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:00,399 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:00,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:35:00,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:00,600 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:35:00,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:00,601 INFO L85 PathProgramCache]: Analyzing trace with hash -50135972, now seen corresponding path program 2 times [2024-11-24 01:35:00,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:00,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28514435] [2024-11-24 01:35:00,601 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:35:00,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:00,608 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:35:00,608 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 01:35:00,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:00,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28514435] [2024-11-24 01:35:00,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28514435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:35:00,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659821904] [2024-11-24 01:35:00,629 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:35:00,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:00,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:35:00,632 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:35:00,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:35:00,662 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:35:00,662 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:00,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:35:00,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:35:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 01:35:00,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:35:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 01:35:00,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659821904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:35:00,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:35:00,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-24 01:35:00,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006367438] [2024-11-24 01:35:00,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:35:00,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:35:00,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:00,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:35:00,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:35:00,734 INFO L87 Difference]: Start difference. First operand 113 states and 133 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:00,789 INFO L93 Difference]: Finished difference Result 157 states and 183 transitions. [2024-11-24 01:35:00,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:35:00,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-24 01:35:00,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:00,791 INFO L225 Difference]: With dead ends: 157 [2024-11-24 01:35:00,791 INFO L226 Difference]: Without dead ends: 156 [2024-11-24 01:35:00,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:35:00,806 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:00,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 75 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:00,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-24 01:35:00,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 110. [2024-11-24 01:35:00,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 106 states have (on average 1.2075471698113207) internal successors, (128), 108 states have internal predecessors, (128), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:00,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 130 transitions. [2024-11-24 01:35:00,823 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 130 transitions. Word has length 21 [2024-11-24 01:35:00,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:00,823 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 130 transitions. [2024-11-24 01:35:00,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:00,823 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 130 transitions. [2024-11-24 01:35:00,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-24 01:35:00,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:00,824 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:00,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:35:01,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:01,029 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:35:01,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:01,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1866166370, now seen corresponding path program 1 times [2024-11-24 01:35:01,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:01,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329828408] [2024-11-24 01:35:01,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:01,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-24 01:35:01,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:01,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329828408] [2024-11-24 01:35:01,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329828408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:01,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:01,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:35:01,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015566346] [2024-11-24 01:35:01,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:01,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:35:01,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:01,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:35:01,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:35:01,073 INFO L87 Difference]: Start difference. First operand 110 states and 130 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:01,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:01,097 INFO L93 Difference]: Finished difference Result 110 states and 130 transitions. [2024-11-24 01:35:01,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:35:01,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-24 01:35:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:01,099 INFO L225 Difference]: With dead ends: 110 [2024-11-24 01:35:01,099 INFO L226 Difference]: Without dead ends: 109 [2024-11-24 01:35:01,099 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 01:35:01,100 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:01,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 22 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:01,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-24 01:35:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 55. [2024-11-24 01:35:01,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 53 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2024-11-24 01:35:01,109 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 26 [2024-11-24 01:35:01,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:01,109 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2024-11-24 01:35:01,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2024-11-24 01:35:01,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-24 01:35:01,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:01,110 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:01,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:35:01,110 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:35:01,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1157723525, now seen corresponding path program 2 times [2024-11-24 01:35:01,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:01,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694391207] [2024-11-24 01:35:01,111 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:35:01,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:01,124 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:35:01,124 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:01,244 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:01,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:01,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694391207] [2024-11-24 01:35:01,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694391207] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:35:01,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511720211] [2024-11-24 01:35:01,245 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:35:01,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:01,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:35:01,249 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:35:01,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:35:01,296 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:35:01,296 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:01,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:35:01,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:35:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:01,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:35:01,545 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:01,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511720211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:35:01,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:35:01,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-24 01:35:01,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578177594] [2024-11-24 01:35:01,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:35:01,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:35:01,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:01,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:35:01,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:35:01,547 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:01,623 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2024-11-24 01:35:01,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:35:01,624 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-24 01:35:01,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:01,625 INFO L225 Difference]: With dead ends: 110 [2024-11-24 01:35:01,626 INFO L226 Difference]: Without dead ends: 109 [2024-11-24 01:35:01,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:35:01,627 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 75 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:01,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 109 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:35:01,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-24 01:35:01,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-24 01:35:01,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 106 states have (on average 1.1320754716981132) internal successors, (120), 107 states have internal predecessors, (120), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 122 transitions. [2024-11-24 01:35:01,644 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 122 transitions. Word has length 41 [2024-11-24 01:35:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:01,645 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 122 transitions. [2024-11-24 01:35:01,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:01,645 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2024-11-24 01:35:01,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-24 01:35:01,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:01,649 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:01,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:35:01,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 01:35:01,853 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:35:01,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:01,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1120161467, now seen corresponding path program 3 times [2024-11-24 01:35:01,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:01,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524771174] [2024-11-24 01:35:01,855 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:35:01,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:01,902 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-24 01:35:01,902 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:02,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:02,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524771174] [2024-11-24 01:35:02,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524771174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:35:02,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652921019] [2024-11-24 01:35:02,263 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:35:02,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:02,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:35:02,265 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:35:02,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:35:02,341 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-24 01:35:02,342 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:02,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:35:02,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:35:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:02,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:35:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:02,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652921019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:35:02,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:35:02,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-11-24 01:35:02,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199408491] [2024-11-24 01:35:02,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:35:02,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 01:35:02,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:02,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 01:35:02,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:35:02,932 INFO L87 Difference]: Start difference. First operand 109 states and 122 transitions. Second operand has 24 states, 23 states have (on average 7.0) internal successors, (161), 24 states have internal predecessors, (161), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:03,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:03,080 INFO L93 Difference]: Finished difference Result 218 states and 254 transitions. [2024-11-24 01:35:03,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 01:35:03,081 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.0) internal successors, (161), 24 states have internal predecessors, (161), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-11-24 01:35:03,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:03,082 INFO L225 Difference]: With dead ends: 218 [2024-11-24 01:35:03,082 INFO L226 Difference]: Without dead ends: 217 [2024-11-24 01:35:03,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:35:03,083 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 219 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:03,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 205 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:35:03,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-24 01:35:03,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-11-24 01:35:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 214 states have (on average 1.1214953271028036) internal successors, (240), 215 states have internal predecessors, (240), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:03,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 242 transitions. [2024-11-24 01:35:03,107 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 242 transitions. Word has length 83 [2024-11-24 01:35:03,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:03,107 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 242 transitions. [2024-11-24 01:35:03,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.0) internal successors, (161), 24 states have internal predecessors, (161), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:03,107 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 242 transitions. [2024-11-24 01:35:03,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-24 01:35:03,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:03,109 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:03,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:35:03,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 01:35:03,314 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:35:03,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:03,315 INFO L85 PathProgramCache]: Analyzing trace with hash 139991237, now seen corresponding path program 4 times [2024-11-24 01:35:03,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:03,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59096751] [2024-11-24 01:35:03,315 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:35:03,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:03,378 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:35:03,378 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:04,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:04,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:04,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59096751] [2024-11-24 01:35:04,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59096751] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:35:04,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084540987] [2024-11-24 01:35:04,542 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:35:04,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:04,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:35:04,546 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:35:04,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:35:04,646 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:35:04,646 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:04,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:35:04,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:35:05,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:05,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:35:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:06,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084540987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:35:06,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:35:06,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-11-24 01:35:06,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750082530] [2024-11-24 01:35:06,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:35:06,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-24 01:35:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:06,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-24 01:35:06,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-24 01:35:06,435 INFO L87 Difference]: Start difference. First operand 217 states and 242 transitions. Second operand has 48 states, 47 states have (on average 7.0) internal successors, (329), 48 states have internal predecessors, (329), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:06,824 INFO L93 Difference]: Finished difference Result 434 states and 506 transitions. [2024-11-24 01:35:06,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-24 01:35:06,824 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 7.0) internal successors, (329), 48 states have internal predecessors, (329), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2024-11-24 01:35:06,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:06,826 INFO L225 Difference]: With dead ends: 434 [2024-11-24 01:35:06,826 INFO L226 Difference]: Without dead ends: 433 [2024-11-24 01:35:06,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-24 01:35:06,829 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 515 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:06,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 415 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:35:06,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-24 01:35:06,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2024-11-24 01:35:06,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 430 states have (on average 1.1162790697674418) internal successors, (480), 431 states have internal predecessors, (480), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:06,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 482 transitions. [2024-11-24 01:35:06,875 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 482 transitions. Word has length 167 [2024-11-24 01:35:06,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:06,877 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 482 transitions. [2024-11-24 01:35:06,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 7.0) internal successors, (329), 48 states have internal predecessors, (329), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:06,877 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 482 transitions. [2024-11-24 01:35:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-24 01:35:06,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:06,888 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:06,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 01:35:07,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 01:35:07,089 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:35:07,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:07,090 INFO L85 PathProgramCache]: Analyzing trace with hash -297752635, now seen corresponding path program 5 times [2024-11-24 01:35:07,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:07,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277915141] [2024-11-24 01:35:07,090 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 01:35:07,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:07,264 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-24 01:35:07,265 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:10,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:10,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277915141] [2024-11-24 01:35:10,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277915141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:35:10,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525919095] [2024-11-24 01:35:10,734 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 01:35:10,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:10,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:35:10,736 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:35:10,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:35:10,956 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-24 01:35:10,956 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:10,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-24 01:35:10,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:35:11,579 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:11,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:35:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:15,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525919095] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:35:15,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:35:15,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-11-24 01:35:15,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549782378] [2024-11-24 01:35:15,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:35:15,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-24 01:35:15,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:15,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-24 01:35:15,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-11-24 01:35:15,353 INFO L87 Difference]: Start difference. First operand 433 states and 482 transitions. Second operand has 96 states, 95 states have (on average 7.0) internal successors, (665), 96 states have internal predecessors, (665), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:17,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:17,208 INFO L93 Difference]: Finished difference Result 866 states and 1010 transitions. [2024-11-24 01:35:17,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-24 01:35:17,208 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 7.0) internal successors, (665), 96 states have internal predecessors, (665), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 335 [2024-11-24 01:35:17,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:17,212 INFO L225 Difference]: With dead ends: 866 [2024-11-24 01:35:17,212 INFO L226 Difference]: Without dead ends: 865 [2024-11-24 01:35:17,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 622 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-11-24 01:35:17,215 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 1653 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:17,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 787 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:35:17,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-24 01:35:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-24 01:35:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 862 states have (on average 1.1136890951276102) internal successors, (960), 863 states have internal predecessors, (960), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 962 transitions. [2024-11-24 01:35:17,300 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 962 transitions. Word has length 335 [2024-11-24 01:35:17,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:17,301 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 962 transitions. [2024-11-24 01:35:17,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 7.0) internal successors, (665), 96 states have internal predecessors, (665), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:17,301 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 962 transitions. [2024-11-24 01:35:17,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2024-11-24 01:35:17,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:17,319 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:17,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 01:35:17,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 01:35:17,519 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:35:17,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:17,520 INFO L85 PathProgramCache]: Analyzing trace with hash -917453371, now seen corresponding path program 6 times [2024-11-24 01:35:17,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:17,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710305215] [2024-11-24 01:35:17,521 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 01:35:17,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:17,866 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-24 01:35:17,866 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:27,703 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:27,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:27,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710305215] [2024-11-24 01:35:27,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710305215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:35:27,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478671997] [2024-11-24 01:35:27,704 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-24 01:35:27,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:27,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:35:27,706 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:35:27,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:35:28,227 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-24 01:35:28,228 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:35:28,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-24 01:35:28,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:35:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:29,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:35:41,896 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:41,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478671997] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:35:41,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:35:41,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-11-24 01:35:41,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302788871] [2024-11-24 01:35:41,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:35:41,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-11-24 01:35:41,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:41,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-11-24 01:35:41,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-11-24 01:35:41,913 INFO L87 Difference]: Start difference. First operand 865 states and 962 transitions. Second operand has 192 states, 191 states have (on average 7.0) internal successors, (1337), 192 states have internal predecessors, (1337), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:55,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:55,269 INFO L93 Difference]: Finished difference Result 1730 states and 2018 transitions. [2024-11-24 01:35:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-11-24 01:35:55,270 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 7.0) internal successors, (1337), 192 states have internal predecessors, (1337), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 671 [2024-11-24 01:35:55,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:55,277 INFO L225 Difference]: With dead ends: 1730 [2024-11-24 01:35:55,277 INFO L226 Difference]: Without dead ends: 1729 [2024-11-24 01:35:55,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1436 GetRequests, 1246 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-11-24 01:35:55,283 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 3196 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3196 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:55,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3196 Valid, 1567 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:35:55,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2024-11-24 01:35:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1729. [2024-11-24 01:35:55,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1726 states have (on average 1.1123986095017382) internal successors, (1920), 1727 states have internal predecessors, (1920), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:55,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 1922 transitions. [2024-11-24 01:35:55,412 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 1922 transitions. Word has length 671 [2024-11-24 01:35:55,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:55,413 INFO L471 AbstractCegarLoop]: Abstraction has 1729 states and 1922 transitions. [2024-11-24 01:35:55,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 7.0) internal successors, (1337), 192 states have internal predecessors, (1337), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:35:55,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 1922 transitions. [2024-11-24 01:35:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1344 [2024-11-24 01:35:55,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:55,481 INFO L218 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 190, 190, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:55,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 01:35:55,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:35:55,681 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:35:55,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:55,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1066597947, now seen corresponding path program 7 times [2024-11-24 01:35:55,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:55,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056575410] [2024-11-24 01:35:55,682 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 01:35:55,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 126825 backedges. 0 proven. 126825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:38,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:38,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056575410] [2024-11-24 01:36:38,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056575410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:36:38,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353276149] [2024-11-24 01:36:38,366 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-24 01:36:38,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:36:38,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:36:38,372 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:36:38,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:36:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:38,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 2884 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-11-24 01:36:39,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:36:40,963 INFO L134 CoverageAnalysis]: Checked inductivity of 126825 backedges. 0 proven. 126825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:40,963 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:37:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 126825 backedges. 0 proven. 126825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:37:32,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353276149] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:37:32,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:37:32,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2024-11-24 01:37:32,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928195712] [2024-11-24 01:37:32,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:37:32,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-11-24 01:37:32,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:37:32,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-11-24 01:37:32,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2024-11-24 01:37:32,926 INFO L87 Difference]: Start difference. First operand 1729 states and 1922 transitions. Second operand has 384 states, 383 states have (on average 7.0) internal successors, (2681), 384 states have internal predecessors, (2681), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:42:13,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:42:13,781 INFO L93 Difference]: Finished difference Result 3458 states and 4034 transitions. [2024-11-24 01:42:13,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2024-11-24 01:42:13,783 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 7.0) internal successors, (2681), 384 states have internal predecessors, (2681), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1343 [2024-11-24 01:42:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:42:13,798 INFO L225 Difference]: With dead ends: 3458 [2024-11-24 01:42:13,798 INFO L226 Difference]: Without dead ends: 3457 [2024-11-24 01:42:13,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2876 GetRequests, 2494 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 67.4s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2024-11-24 01:42:13,807 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 5381 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5381 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:42:13,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5381 Valid, 3151 Invalid, 793 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:42:13,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2024-11-24 01:42:14,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 3457. [2024-11-24 01:42:14,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3457 states, 3454 states have (on average 1.111754487550666) internal successors, (3840), 3455 states have internal predecessors, (3840), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:42:14,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 3842 transitions. [2024-11-24 01:42:14,093 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 3842 transitions. Word has length 1343 [2024-11-24 01:42:14,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:42:14,095 INFO L471 AbstractCegarLoop]: Abstraction has 3457 states and 3842 transitions. [2024-11-24 01:42:14,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 7.0) internal successors, (2681), 384 states have internal predecessors, (2681), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:42:14,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 3842 transitions. [2024-11-24 01:42:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2688 [2024-11-24 01:42:14,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:42:14,162 INFO L218 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 383, 382, 382, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:42:14,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 01:42:14,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:42:14,363 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2024-11-24 01:42:14,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:42:14,365 INFO L85 PathProgramCache]: Analyzing trace with hash -761955899, now seen corresponding path program 8 times [2024-11-24 01:42:14,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:42:14,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544616513] [2024-11-24 01:42:14,365 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:42:14,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:42:17,491 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:42:17,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:46:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 511689 backedges. 0 proven. 511689 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:46:08,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:46:08,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544616513] [2024-11-24 01:46:08,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544616513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:46:08,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426617679] [2024-11-24 01:46:08,441 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:46:08,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:46:08,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:46:08,443 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:46:08,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_703356a3-0012-4f95-82fb-b8e32a80a0d6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:46:09,610 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:46:09,611 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:46:09,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 5764 conjuncts, 384 conjuncts are in the unsatisfiable core [2024-11-24 01:46:09,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:46:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 511689 backedges. 0 proven. 511689 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:46:13,357 INFO L312 TraceCheckSpWp]: Computing backward predicates...