./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strstr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU --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 4f0de1cabcaa1e7c1b5012604e9626b39d1f0fa44ba0399b8bd31764898831fc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:28,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:28,121 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-31 22:04:28,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:28,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:28,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:28,164 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:28,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:28,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:28,170 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:28,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:28,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:28,171 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:28,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:28,172 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:28,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:28,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:28,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:28,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:28,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:28,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:28,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:28,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:28,177 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:04:28,178 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:28,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:28,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:28,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:28,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:28,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:28,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:28,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:28,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:28,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:28,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:28,181 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:28,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:28,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:28,182 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:28,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:28,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:28,183 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0de1cabcaa1e7c1b5012604e9626b39d1f0fa44ba0399b8bd31764898831fc [2024-10-31 22:04:28,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:28,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:28,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:28,488 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:28,488 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:28,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-dietlibc/strstr.i Unable to find full path for "g++" [2024-10-31 22:04:30,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:30,979 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:30,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/sv-benchmarks/c/termination-dietlibc/strstr.i [2024-10-31 22:04:31,005 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/data/8fba17e01/395132a2d51f4738af62342a7e8f87aa/FLAGec846425e [2024-10-31 22:04:31,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/data/8fba17e01/395132a2d51f4738af62342a7e8f87aa [2024-10-31 22:04:31,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:31,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:31,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:31,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:31,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:31,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b713f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31, skipping insertion in model container [2024-10-31 22:04:31,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,136 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:31,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:31,578 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:31,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:31,667 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:31,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31 WrapperNode [2024-10-31 22:04:31,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:31,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:31,670 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:31,670 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:31,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,722 INFO L138 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 160 [2024-10-31 22:04:31,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:31,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:31,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:31,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:31,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,762 INFO L175 MemorySlicer]: Split 9 memory accesses to 1 slices as follows [9]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 4 writes are split as follows [4]. [2024-10-31 22:04:31,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:31,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:31,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:31,782 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:31,783 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (1/1) ... [2024-10-31 22:04:31,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:31,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:31,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:31,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:04:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:04:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:04:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2024-10-31 22:04:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen [2024-10-31 22:04:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:04:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:31,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:31,982 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:31,985 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:32,349 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-10-31 22:04:32,349 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:32,367 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:32,368 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-31 22:04:32,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:32 BoogieIcfgContainer [2024-10-31 22:04:32,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:32,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:32,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:32,376 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:32,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:31" (1/3) ... [2024-10-31 22:04:32,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd734f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:32, skipping insertion in model container [2024-10-31 22:04:32,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:31" (2/3) ... [2024-10-31 22:04:32,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd734f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:32, skipping insertion in model container [2024-10-31 22:04:32,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:32" (3/3) ... [2024-10-31 22:04:32,382 INFO L112 eAbstractionObserver]: Analyzing ICFG strstr.i [2024-10-31 22:04:32,403 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:32,404 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-31 22:04:32,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:32,490 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;@76b64115, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:32,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-31 22:04:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 49 states have (on average 1.653061224489796) internal successors, (81), 63 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:04:32,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 22:04:32,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:32,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 22:04:32,506 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:32,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1572135, now seen corresponding path program 1 times [2024-10-31 22:04:32,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:32,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12298525] [2024-10-31 22:04:32,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:32,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:32,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:32,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12298525] [2024-10-31 22:04:32,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12298525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:32,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:32,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:32,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430618715] [2024-10-31 22:04:32,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:32,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:32,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:32,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:32,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:32,825 INFO L87 Difference]: Start difference. First operand has 67 states, 49 states have (on average 1.653061224489796) internal successors, (81), 63 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:32,885 INFO L93 Difference]: Finished difference Result 118 states and 156 transitions. [2024-10-31 22:04:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:32,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-31 22:04:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:32,898 INFO L225 Difference]: With dead ends: 118 [2024-10-31 22:04:32,899 INFO L226 Difference]: Without dead ends: 32 [2024-10-31 22:04:32,902 INFO L431 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 [2024-10-31 22:04:32,908 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 11 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 126 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 [2024-10-31 22:04:32,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 126 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:32,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-31 22:04:32,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-31 22:04:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2024-10-31 22:04:32,950 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 4 [2024-10-31 22:04:32,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:32,951 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2024-10-31 22:04:32,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:32,952 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2024-10-31 22:04:32,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 22:04:32,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:32,953 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:04:32,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:32,953 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:32,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:32,954 INFO L85 PathProgramCache]: Analyzing trace with hash 48736250, now seen corresponding path program 1 times [2024-10-31 22:04:32,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:32,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066711337] [2024-10-31 22:04:32,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:32,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:33,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:33,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066711337] [2024-10-31 22:04:33,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066711337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:33,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:33,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:33,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471195410] [2024-10-31 22:04:33,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:33,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:33,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:33,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:33,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:33,005 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:33,028 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2024-10-31 22:04:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:33,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-31 22:04:33,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:33,030 INFO L225 Difference]: With dead ends: 32 [2024-10-31 22:04:33,030 INFO L226 Difference]: Without dead ends: 30 [2024-10-31 22:04:33,031 INFO L431 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 [2024-10-31 22:04:33,035 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:33,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 41 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-31 22:04:33,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-31 22:04:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2024-10-31 22:04:33,042 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 5 [2024-10-31 22:04:33,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:33,042 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2024-10-31 22:04:33,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,043 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2024-10-31 22:04:33,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:04:33,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:33,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:33,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:33,044 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:33,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:33,045 INFO L85 PathProgramCache]: Analyzing trace with hash 202747278, now seen corresponding path program 1 times [2024-10-31 22:04:33,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:33,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298428663] [2024-10-31 22:04:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:33,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:33,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:33,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298428663] [2024-10-31 22:04:33,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298428663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:33,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:33,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:33,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900301998] [2024-10-31 22:04:33,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:33,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:33,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:33,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:33,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:33,191 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:33,226 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2024-10-31 22:04:33,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:33,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:04:33,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:33,228 INFO L225 Difference]: With dead ends: 38 [2024-10-31 22:04:33,228 INFO L226 Difference]: Without dead ends: 36 [2024-10-31 22:04:33,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:33,230 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:33,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 72 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:33,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-31 22:04:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-10-31 22:04:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2024-10-31 22:04:33,237 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 8 [2024-10-31 22:04:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:33,237 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2024-10-31 22:04:33,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2024-10-31 22:04:33,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:04:33,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:33,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:33,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:04:33,239 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:33,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1270592493, now seen corresponding path program 1 times [2024-10-31 22:04:33,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:33,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145268013] [2024-10-31 22:04:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:33,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:33,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:33,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145268013] [2024-10-31 22:04:33,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145268013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:33,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:33,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:33,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690623479] [2024-10-31 22:04:33,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:33,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:33,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:33,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:33,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:33,306 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:33,330 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2024-10-31 22:04:33,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:33,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-31 22:04:33,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:33,332 INFO L225 Difference]: With dead ends: 36 [2024-10-31 22:04:33,332 INFO L226 Difference]: Without dead ends: 34 [2024-10-31 22:04:33,333 INFO L431 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 [2024-10-31 22:04:33,334 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:33,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:33,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-31 22:04:33,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-10-31 22:04:33,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-10-31 22:04:33,341 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2024-10-31 22:04:33,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:33,341 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-10-31 22:04:33,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,342 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2024-10-31 22:04:33,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-31 22:04:33,342 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:33,342 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:33,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:04:33,343 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:33,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:33,343 INFO L85 PathProgramCache]: Analyzing trace with hash 733661715, now seen corresponding path program 1 times [2024-10-31 22:04:33,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:33,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754115682] [2024-10-31 22:04:33,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:33,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:33,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:33,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754115682] [2024-10-31 22:04:33,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754115682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:33,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:33,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:33,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910606776] [2024-10-31 22:04:33,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:33,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:33,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:33,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:33,429 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:33,455 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2024-10-31 22:04:33,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:33,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-31 22:04:33,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:33,457 INFO L225 Difference]: With dead ends: 34 [2024-10-31 22:04:33,457 INFO L226 Difference]: Without dead ends: 29 [2024-10-31 22:04:33,457 INFO L431 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 [2024-10-31 22:04:33,460 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:33,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 34 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:33,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-10-31 22:04:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-10-31 22:04:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2024-10-31 22:04:33,472 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 12 [2024-10-31 22:04:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:33,473 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2024-10-31 22:04:33,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2024-10-31 22:04:33,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 22:04:33,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:33,474 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:33,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:04:33,474 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:33,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:33,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1532722920, now seen corresponding path program 1 times [2024-10-31 22:04:33,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:33,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792486306] [2024-10-31 22:04:33,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:33,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:33,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:33,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792486306] [2024-10-31 22:04:33,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792486306] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:33,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910846898] [2024-10-31 22:04:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:33,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:33,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:33,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:33,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:04:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:33,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:33,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:33,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:33,851 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:33,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910846898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:33,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:04:33,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-31 22:04:33,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580851480] [2024-10-31 22:04:33,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:33,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:33,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:33,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:33,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:04:33,854 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:33,936 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-10-31 22:04:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:33,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-31 22:04:33,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:33,938 INFO L225 Difference]: With dead ends: 29 [2024-10-31 22:04:33,939 INFO L226 Difference]: Without dead ends: 28 [2024-10-31 22:04:33,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:04:33,940 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:33,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 81 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:33,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-31 22:04:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-10-31 22:04:33,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.2) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2024-10-31 22:04:33,945 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 14 [2024-10-31 22:04:33,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:33,946 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2024-10-31 22:04:33,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,946 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2024-10-31 22:04:33,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 22:04:33,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:33,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:33,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:04:34,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-31 22:04:34,152 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:34,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:34,152 INFO L85 PathProgramCache]: Analyzing trace with hash -572317420, now seen corresponding path program 1 times [2024-10-31 22:04:34,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:34,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852063302] [2024-10-31 22:04:34,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:34,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:34,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:34,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852063302] [2024-10-31 22:04:34,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852063302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:34,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:34,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:34,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684199041] [2024-10-31 22:04:34,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:34,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:34,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:34,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:34,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:34,231 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:34,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:34,261 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2024-10-31 22:04:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:34,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-31 22:04:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:34,262 INFO L225 Difference]: With dead ends: 36 [2024-10-31 22:04:34,262 INFO L226 Difference]: Without dead ends: 34 [2024-10-31 22:04:34,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:34,266 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 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 [2024-10-31 22:04:34,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:34,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-31 22:04:34,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-10-31 22:04:34,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-10-31 22:04:34,272 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 15 [2024-10-31 22:04:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:34,272 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-10-31 22:04:34,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:34,273 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2024-10-31 22:04:34,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-31 22:04:34,273 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:34,273 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:04:34,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:04:34,274 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:34,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:34,275 INFO L85 PathProgramCache]: Analyzing trace with hash 269770340, now seen corresponding path program 1 times [2024-10-31 22:04:34,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:34,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193873597] [2024-10-31 22:04:34,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:34,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:34,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193873597] [2024-10-31 22:04:34,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193873597] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:34,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344252213] [2024-10-31 22:04:34,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:34,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:34,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:34,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:34,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:04:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:34,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:34,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:34,590 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:34,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:34,688 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:34,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344252213] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:34,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:34,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-31 22:04:34,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142314434] [2024-10-31 22:04:34,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:34,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:04:34,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:34,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:04:34,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:04:34,695 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:34,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:34,773 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2024-10-31 22:04:34,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:04:34,774 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-31 22:04:34,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:34,776 INFO L225 Difference]: With dead ends: 53 [2024-10-31 22:04:34,777 INFO L226 Difference]: Without dead ends: 52 [2024-10-31 22:04:34,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:04:34,778 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:34,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:34,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-31 22:04:34,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-31 22:04:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 49 states have (on average 1.163265306122449) internal successors, (57), 51 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2024-10-31 22:04:34,788 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 15 [2024-10-31 22:04:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:34,789 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2024-10-31 22:04:34,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2024-10-31 22:04:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-31 22:04:34,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:34,791 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:34,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:04:34,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-31 22:04:34,992 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:34,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:34,992 INFO L85 PathProgramCache]: Analyzing trace with hash 859003278, now seen corresponding path program 1 times [2024-10-31 22:04:34,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:34,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688522628] [2024-10-31 22:04:34,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:34,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:35,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:35,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688522628] [2024-10-31 22:04:35,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688522628] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:35,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141183181] [2024-10-31 22:04:35,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:35,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:35,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:35,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:35,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:04:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:35,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:35,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:35,316 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:35,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141183181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:35,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:04:35,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-31 22:04:35,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758776974] [2024-10-31 22:04:35,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:35,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:35,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:35,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:35,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:04:35,319 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:35,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:35,352 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2024-10-31 22:04:35,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:35,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-10-31 22:04:35,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:35,354 INFO L225 Difference]: With dead ends: 52 [2024-10-31 22:04:35,354 INFO L226 Difference]: Without dead ends: 51 [2024-10-31 22:04:35,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:04:35,355 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:35,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:35,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-31 22:04:35,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-10-31 22:04:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:35,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-10-31 22:04:35,362 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 21 [2024-10-31 22:04:35,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:35,363 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-10-31 22:04:35,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-10-31 22:04:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-31 22:04:35,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:35,364 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:35,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:04:35,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-31 22:04:35,569 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:35,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:35,569 INFO L85 PathProgramCache]: Analyzing trace with hash 859297949, now seen corresponding path program 1 times [2024-10-31 22:04:35,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:35,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395694148] [2024-10-31 22:04:35,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:35,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:35,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:35,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:35,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395694148] [2024-10-31 22:04:35,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395694148] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:35,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910122720] [2024-10-31 22:04:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:35,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:35,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:35,708 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:35,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:04:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:35,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:35,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:35,841 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:35,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910122720] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:35,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:35,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-31 22:04:35,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460117895] [2024-10-31 22:04:35,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:35,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:04:35,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:35,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:04:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:04:35,905 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:35,961 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2024-10-31 22:04:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:04:35,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-10-31 22:04:35,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:35,962 INFO L225 Difference]: With dead ends: 70 [2024-10-31 22:04:35,962 INFO L226 Difference]: Without dead ends: 69 [2024-10-31 22:04:35,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:04:35,964 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:35,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:35,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-31 22:04:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-10-31 22:04:35,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 67 states have (on average 1.1044776119402986) internal successors, (74), 68 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:35,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2024-10-31 22:04:35,971 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 22 [2024-10-31 22:04:35,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:35,972 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2024-10-31 22:04:35,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2024-10-31 22:04:35,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 22:04:35,973 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:35,973 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2024-10-31 22:04:35,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:04:36,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:36,174 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:36,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:36,175 INFO L85 PathProgramCache]: Analyzing trace with hash -571617002, now seen corresponding path program 2 times [2024-10-31 22:04:36,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:36,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602403857] [2024-10-31 22:04:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:36,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:36,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:36,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602403857] [2024-10-31 22:04:36,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602403857] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:36,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868572340] [2024-10-31 22:04:36,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:04:36,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:36,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:36,382 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:36,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:04:36,455 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:04:36,455 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:36,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:04:36,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-31 22:04:36,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-31 22:04:36,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868572340] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:36,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:36,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2024-10-31 22:04:36,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536366371] [2024-10-31 22:04:36,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:36,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:04:36,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:36,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:04:36,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:04:36,694 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:36,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:36,995 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2024-10-31 22:04:36,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:04:36,995 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-10-31 22:04:36,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:36,996 INFO L225 Difference]: With dead ends: 78 [2024-10-31 22:04:36,996 INFO L226 Difference]: Without dead ends: 77 [2024-10-31 22:04:36,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=219, Invalid=711, Unknown=0, NotChecked=0, Total=930 [2024-10-31 22:04:36,998 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:36,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 86 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:36,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-31 22:04:37,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 44. [2024-10-31 22:04:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 43 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:37,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2024-10-31 22:04:37,004 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 33 [2024-10-31 22:04:37,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:37,004 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2024-10-31 22:04:37,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:37,005 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2024-10-31 22:04:37,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-31 22:04:37,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:37,006 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:37,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:04:37,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:37,207 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:37,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:37,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1312412143, now seen corresponding path program 2 times [2024-10-31 22:04:37,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:37,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124730618] [2024-10-31 22:04:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:37,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:37,433 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:37,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:37,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124730618] [2024-10-31 22:04:37,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124730618] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:37,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114946486] [2024-10-31 22:04:37,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:04:37,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:37,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:37,437 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:37,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:04:37,524 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:04:37,524 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:04:37,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:04:37,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-31 22:04:37,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-31 22:04:37,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114946486] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:37,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:37,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2024-10-31 22:04:37,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383138108] [2024-10-31 22:04:37,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:37,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:04:37,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:37,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:04:37,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:04:37,744 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:37,999 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2024-10-31 22:04:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:04:38,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-10-31 22:04:38,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:38,001 INFO L225 Difference]: With dead ends: 53 [2024-10-31 22:04:38,001 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 22:04:38,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=219, Invalid=711, Unknown=0, NotChecked=0, Total=930 [2024-10-31 22:04:38,002 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:38,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 108 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:38,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 22:04:38,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 22:04:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:38,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:04:38,004 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2024-10-31 22:04:38,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:38,004 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:04:38,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.764705882352941) internal successors, (64), 18 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:38,005 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:04:38,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 22:04:38,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2024-10-31 22:04:38,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2024-10-31 22:04:38,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-10-31 22:04:38,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-10-31 22:04:38,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-10-31 22:04:38,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-10-31 22:04:38,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-10-31 22:04:38,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-10-31 22:04:38,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2024-10-31 22:04:38,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2024-10-31 22:04:38,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-10-31 22:04:38,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-10-31 22:04:38,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-10-31 22:04:38,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-10-31 22:04:38,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:04:38,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:38,217 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:38,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 22:04:38,348 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:04:38,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:04:38 BoogieIcfgContainer [2024-10-31 22:04:38,368 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:04:38,369 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:04:38,369 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:04:38,369 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:04:38,370 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:32" (3/4) ... [2024-10-31 22:04:38,372 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:04:38,377 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure strlen [2024-10-31 22:04:38,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-10-31 22:04:38,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-31 22:04:38,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-31 22:04:38,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:04:38,506 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:04:38,507 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:04:38,507 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:04:38,508 INFO L158 Benchmark]: Toolchain (without parser) took 7471.48ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 117.5MB in the beginning and 154.9MB in the end (delta: -37.3MB). Peak memory consumption was 107.5MB. Max. memory is 16.1GB. [2024-10-31 22:04:38,508 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:38,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 626.41ms. Allocated memory is still 157.3MB. Free memory was 117.5MB in the beginning and 98.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:04:38,509 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.53ms. Allocated memory is still 157.3MB. Free memory was 97.9MB in the beginning and 95.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:38,509 INFO L158 Benchmark]: Boogie Preprocessor took 57.07ms. Allocated memory is still 157.3MB. Free memory was 95.8MB in the beginning and 93.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:38,510 INFO L158 Benchmark]: RCFGBuilder took 588.14ms. Allocated memory is still 157.3MB. Free memory was 93.0MB in the beginning and 73.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:04:38,510 INFO L158 Benchmark]: TraceAbstraction took 5995.87ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 72.8MB in the beginning and 49.8MB in the end (delta: 22.9MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:38,511 INFO L158 Benchmark]: Witness Printer took 138.28ms. Allocated memory is still 188.7MB. Free memory was 49.8MB in the beginning and 154.9MB in the end (delta: -105.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 22:04:38,512 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 626.41ms. Allocated memory is still 157.3MB. Free memory was 117.5MB in the beginning and 98.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.53ms. Allocated memory is still 157.3MB. Free memory was 97.9MB in the beginning and 95.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.07ms. Allocated memory is still 157.3MB. Free memory was 95.8MB in the beginning and 93.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 588.14ms. Allocated memory is still 157.3MB. Free memory was 93.0MB in the beginning and 73.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5995.87ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 72.8MB in the beginning and 49.8MB in the end (delta: 22.9MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. * Witness Printer took 138.28ms. Allocated memory is still 188.7MB. Free memory was 49.8MB in the beginning and 154.9MB in the end (delta: -105.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 548]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 548]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 67 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 891 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 613 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 405 IncrementalHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 278 mSDtfsCounter, 405 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 327 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=10, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 33 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 345 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 433 ConstructedInterpolants, 0 QuantifiedInterpolants, 1069 SizeOfPredicates, 4 NumberOfNonLiveVariables, 385 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 22 InterpolantComputations, 8 PerfectInterpolantSequences, 202/416 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 544]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-31 22:04:38,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761613c2-a5ea-4c90-892b-46f34038620b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE