./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB --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 32bit --witnessprinter.graph.data.programhash df76811034b688387cfe28dd1eb6de91c21580662ac8ddb8163b41c1d6179172 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:55:27,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:55:27,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:55:27,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:55:27,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:55:27,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:55:27,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:55:27,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:55:27,438 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:55:27,438 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:55:27,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:55:27,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:55:27,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:55:27,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:55:27,439 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:55:27,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:55:27,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:55:27,439 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:55:27,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:55:27,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:55:27,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:55:27,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:55:27,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:55:27,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:55:27,440 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:55:27,440 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:55:27,441 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:55:27,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:55:27,441 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:55:27,441 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:55:27,441 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:55:27,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:55:27,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:55:27,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:55:27,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:27,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:55:27,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:55:27,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:55:27,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:55:27,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:27,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:55:27,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:55:27,443 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:55:27,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:55:27,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:55:27,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:55:27,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:55:27,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:55:27,443 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:55:27,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:55:27,444 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df76811034b688387cfe28dd1eb6de91c21580662ac8ddb8163b41c1d6179172 [2024-11-28 02:55:27,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:55:27,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:55:27,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:55:27,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:55:27,786 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:55:27,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c [2024-11-28 02:55:30,739 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/data/761e108ef/0ac94650c8cf4d7f98c7252d326a1fe7/FLAG09c6a3886 [2024-11-28 02:55:30,999 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:55:31,000 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c [2024-11-28 02:55:31,008 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/data/761e108ef/0ac94650c8cf4d7f98c7252d326a1fe7/FLAG09c6a3886 [2024-11-28 02:55:31,024 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/data/761e108ef/0ac94650c8cf4d7f98c7252d326a1fe7 [2024-11-28 02:55:31,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:55:31,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:55:31,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:55:31,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:55:31,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:55:31,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6a787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31, skipping insertion in model container [2024-11-28 02:55:31,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:55:31,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:55:31,314 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:55:31,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:55:31,349 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:55:31,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31 WrapperNode [2024-11-28 02:55:31,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:55:31,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:55:31,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:55:31,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:55:31,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,399 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2024-11-28 02:55:31,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:55:31,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:55:31,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:55:31,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:55:31,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,432 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-28 02:55:31,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,437 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:55:31,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:55:31,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:55:31,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:55:31,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (1/1) ... [2024-11-28 02:55:31,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:31,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:31,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:55:31,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:55:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:55:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:55:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:55:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:55:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:55:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:55:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:55:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:55:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:55:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:55:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:55:31,614 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:55:31,615 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:55:31,848 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-28 02:55:31,849 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:55:31,860 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:55:31,860 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 02:55:31,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:55:31 BoogieIcfgContainer [2024-11-28 02:55:31,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:55:31,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:55:31,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:55:31,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:55:31,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:55:31" (1/3) ... [2024-11-28 02:55:31,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7bcff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:55:31, skipping insertion in model container [2024-11-28 02:55:31,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:31" (2/3) ... [2024-11-28 02:55:31,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7bcff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:55:31, skipping insertion in model container [2024-11-28 02:55:31,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:55:31" (3/3) ... [2024-11-28 02:55:31,871 INFO L128 eAbstractionObserver]: Analyzing ICFG init-non-constant-3-u.c [2024-11-28 02:55:31,887 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:55:31,889 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG init-non-constant-3-u.c that has 1 procedures, 62 locations, 1 initial locations, 6 loop locations, and 20 error locations. [2024-11-28 02:55:31,944 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:55:31,960 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;@170110fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:55:31,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-28 02:55:31,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 61 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) [2024-11-28 02:55:31,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 02:55:31,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:31,970 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 02:55:31,971 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:31,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:31,978 INFO L85 PathProgramCache]: Analyzing trace with hash 889601257, now seen corresponding path program 1 times [2024-11-28 02:55:31,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:31,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374668110] [2024-11-28 02:55:31,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:31,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:32,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:32,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:32,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374668110] [2024-11-28 02:55:32,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374668110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:32,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:32,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:55:32,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084390887] [2024-11-28 02:55:32,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:32,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:55:32,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:32,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:55:32,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:55:32,261 INFO L87 Difference]: Start difference. First operand has 62 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 61 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:32,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:32,434 INFO L93 Difference]: Finished difference Result 151 states and 196 transitions. [2024-11-28 02:55:32,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:55:32,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-28 02:55:32,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:32,450 INFO L225 Difference]: With dead ends: 151 [2024-11-28 02:55:32,451 INFO L226 Difference]: Without dead ends: 85 [2024-11-28 02:55:32,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:55:32,458 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 128 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:32,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 58 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:32,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-28 02:55:32,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2024-11-28 02:55:32,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 61 states have (on average 1.639344262295082) internal successors, (100), 80 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:32,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 100 transitions. [2024-11-28 02:55:32,502 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 100 transitions. Word has length 6 [2024-11-28 02:55:32,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:32,503 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 100 transitions. [2024-11-28 02:55:32,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 100 transitions. [2024-11-28 02:55:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:55:32,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:32,504 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:32,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:55:32,504 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:32,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:32,505 INFO L85 PathProgramCache]: Analyzing trace with hash 208226639, now seen corresponding path program 1 times [2024-11-28 02:55:32,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:32,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40851253] [2024-11-28 02:55:32,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:32,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:32,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:32,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40851253] [2024-11-28 02:55:32,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40851253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:32,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:32,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:55:32,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295746065] [2024-11-28 02:55:32,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:32,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:55:32,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:32,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:55:32,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:55:32,656 INFO L87 Difference]: Start difference. First operand 81 states and 100 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:32,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:32,887 INFO L93 Difference]: Finished difference Result 159 states and 197 transitions. [2024-11-28 02:55:32,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:55:32,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 02:55:32,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:32,890 INFO L225 Difference]: With dead ends: 159 [2024-11-28 02:55:32,890 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 02:55:32,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:55:32,891 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 68 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:32,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 79 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:55:32,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 02:55:32,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 139. [2024-11-28 02:55:32,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 119 states have (on average 1.588235294117647) internal successors, (189), 138 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 189 transitions. [2024-11-28 02:55:32,921 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 189 transitions. Word has length 8 [2024-11-28 02:55:32,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:32,922 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 189 transitions. [2024-11-28 02:55:32,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 189 transitions. [2024-11-28 02:55:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:55:32,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:32,923 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:32,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:55:32,924 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:32,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1757660751, now seen corresponding path program 1 times [2024-11-28 02:55:32,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:32,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321231467] [2024-11-28 02:55:32,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:32,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:33,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:33,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321231467] [2024-11-28 02:55:33,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321231467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:33,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:33,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:55:33,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981341551] [2024-11-28 02:55:33,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:33,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:55:33,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:33,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:55:33,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:33,131 INFO L87 Difference]: Start difference. First operand 139 states and 189 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:33,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:33,336 INFO L93 Difference]: Finished difference Result 176 states and 216 transitions. [2024-11-28 02:55:33,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:55:33,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-28 02:55:33,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:33,338 INFO L225 Difference]: With dead ends: 176 [2024-11-28 02:55:33,338 INFO L226 Difference]: Without dead ends: 168 [2024-11-28 02:55:33,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:33,340 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 118 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:33,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 76 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:55:33,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-28 02:55:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 156. [2024-11-28 02:55:33,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 136 states have (on average 1.5294117647058822) internal successors, (208), 155 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:33,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 208 transitions. [2024-11-28 02:55:33,357 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 208 transitions. Word has length 10 [2024-11-28 02:55:33,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:33,358 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 208 transitions. [2024-11-28 02:55:33,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:33,358 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 208 transitions. [2024-11-28 02:55:33,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 02:55:33,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:33,358 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:33,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:55:33,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:33,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:33,362 INFO L85 PathProgramCache]: Analyzing trace with hash -307344259, now seen corresponding path program 1 times [2024-11-28 02:55:33,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:33,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611934218] [2024-11-28 02:55:33,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:33,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:33,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:33,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:33,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611934218] [2024-11-28 02:55:33,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611934218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:33,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:33,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:55:33,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317881925] [2024-11-28 02:55:33,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:33,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:55:33,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:33,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:55:33,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:55:33,449 INFO L87 Difference]: Start difference. First operand 156 states and 208 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:33,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:33,562 INFO L93 Difference]: Finished difference Result 347 states and 482 transitions. [2024-11-28 02:55:33,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:55:33,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-28 02:55:33,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:33,566 INFO L225 Difference]: With dead ends: 347 [2024-11-28 02:55:33,568 INFO L226 Difference]: Without dead ends: 211 [2024-11-28 02:55:33,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:55:33,570 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 75 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:33,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 72 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:33,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-28 02:55:33,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 207. [2024-11-28 02:55:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 187 states have (on average 1.5026737967914439) internal successors, (281), 206 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:33,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 281 transitions. [2024-11-28 02:55:33,615 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 281 transitions. Word has length 13 [2024-11-28 02:55:33,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:33,616 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 281 transitions. [2024-11-28 02:55:33,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:33,616 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 281 transitions. [2024-11-28 02:55:33,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-28 02:55:33,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:33,621 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:33,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:55:33,622 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:33,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:33,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1035485251, now seen corresponding path program 1 times [2024-11-28 02:55:33,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:33,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550755584] [2024-11-28 02:55:33,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:33,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:33,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:33,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550755584] [2024-11-28 02:55:33,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550755584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:33,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580876949] [2024-11-28 02:55:33,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:33,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:33,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:33,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:33,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:55:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:34,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:55:34,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:34,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:34,354 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:34,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580876949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:34,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:34,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-28 02:55:34,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096026907] [2024-11-28 02:55:34,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:34,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:55:34,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:34,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:55:34,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:55:34,356 INFO L87 Difference]: Start difference. First operand 207 states and 281 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:34,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:34,593 INFO L93 Difference]: Finished difference Result 207 states and 281 transitions. [2024-11-28 02:55:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:55:34,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2024-11-28 02:55:34,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:34,596 INFO L225 Difference]: With dead ends: 207 [2024-11-28 02:55:34,596 INFO L226 Difference]: Without dead ends: 197 [2024-11-28 02:55:34,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:55:34,599 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 67 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:34,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 14 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:55:34,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-28 02:55:34,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-28 02:55:34,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 187 states have (on average 1.2887700534759359) internal successors, (241), 196 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 241 transitions. [2024-11-28 02:55:34,624 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 241 transitions. Word has length 17 [2024-11-28 02:55:34,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:34,625 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 241 transitions. [2024-11-28 02:55:34,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:34,625 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 241 transitions. [2024-11-28 02:55:34,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 02:55:34,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:34,626 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:34,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:55:34,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:34,831 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:34,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:34,832 INFO L85 PathProgramCache]: Analyzing trace with hash -2035271640, now seen corresponding path program 1 times [2024-11-28 02:55:34,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:34,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607579754] [2024-11-28 02:55:34,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:34,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:34,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:34,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:34,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607579754] [2024-11-28 02:55:34,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607579754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:34,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430819088] [2024-11-28 02:55:34,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:34,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:34,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:34,997 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:35,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:55:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:35,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:55:35,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:35,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:35,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430819088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:35,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:35,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 02:55:35,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076391117] [2024-11-28 02:55:35,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:35,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:55:35,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:35,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:55:35,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:55:35,413 INFO L87 Difference]: Start difference. First operand 197 states and 241 transitions. Second operand has 14 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:36,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:36,181 INFO L93 Difference]: Finished difference Result 407 states and 502 transitions. [2024-11-28 02:55:36,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 02:55:36,182 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 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 18 [2024-11-28 02:55:36,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:36,183 INFO L225 Difference]: With dead ends: 407 [2024-11-28 02:55:36,183 INFO L226 Difference]: Without dead ends: 397 [2024-11-28 02:55:36,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=214, Invalid=386, Unknown=0, NotChecked=0, Total=600 [2024-11-28 02:55:36,185 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 574 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:36,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 84 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:55:36,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-28 02:55:36,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 387. [2024-11-28 02:55:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 377 states have (on average 1.2413793103448276) internal successors, (468), 386 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 468 transitions. [2024-11-28 02:55:36,222 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 468 transitions. Word has length 18 [2024-11-28 02:55:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:36,222 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 468 transitions. [2024-11-28 02:55:36,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 468 transitions. [2024-11-28 02:55:36,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 02:55:36,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:36,225 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:36,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:36,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:36,430 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:36,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash 208971180, now seen corresponding path program 1 times [2024-11-28 02:55:36,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:36,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243916106] [2024-11-28 02:55:36,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:36,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:55:36,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:36,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243916106] [2024-11-28 02:55:36,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243916106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:36,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414141385] [2024-11-28 02:55:36,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:36,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:36,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:36,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:36,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:55:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:36,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:55:36,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 02:55:36,648 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:36,705 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 02:55:36,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414141385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:36,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:36,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 10 [2024-11-28 02:55:36,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237965356] [2024-11-28 02:55:36,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:36,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:55:36,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:36,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:55:36,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:55:36,707 INFO L87 Difference]: Start difference. First operand 387 states and 468 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:36,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:36,927 INFO L93 Difference]: Finished difference Result 942 states and 1187 transitions. [2024-11-28 02:55:36,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:55:36,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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 32 [2024-11-28 02:55:36,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:36,930 INFO L225 Difference]: With dead ends: 942 [2024-11-28 02:55:36,930 INFO L226 Difference]: Without dead ends: 589 [2024-11-28 02:55:36,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:55:36,935 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 187 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:36,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 127 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:55:36,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-28 02:55:36,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 583. [2024-11-28 02:55:36,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 573 states have (on average 1.2286212914485166) internal successors, (704), 582 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:36,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 704 transitions. [2024-11-28 02:55:36,970 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 704 transitions. Word has length 32 [2024-11-28 02:55:36,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:36,971 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 704 transitions. [2024-11-28 02:55:36,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:36,971 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 704 transitions. [2024-11-28 02:55:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 02:55:36,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:36,972 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:36,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:37,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:37,172 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:37,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:37,173 INFO L85 PathProgramCache]: Analyzing trace with hash -459337334, now seen corresponding path program 1 times [2024-11-28 02:55:37,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:37,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741644480] [2024-11-28 02:55:37,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:37,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:37,292 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:55:37,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:37,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741644480] [2024-11-28 02:55:37,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741644480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:37,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105159774] [2024-11-28 02:55:37,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:37,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:37,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:37,299 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:37,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:55:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:37,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:55:37,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:37,447 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:37,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:37,521 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:37,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105159774] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:37,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:37,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 11 [2024-11-28 02:55:37,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109368267] [2024-11-28 02:55:37,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:37,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:55:37,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:37,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:55:37,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:55:37,524 INFO L87 Difference]: Start difference. First operand 583 states and 704 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:37,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:37,734 INFO L93 Difference]: Finished difference Result 710 states and 871 transitions. [2024-11-28 02:55:37,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:55:37,734 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 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 34 [2024-11-28 02:55:37,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:37,737 INFO L225 Difference]: With dead ends: 710 [2024-11-28 02:55:37,738 INFO L226 Difference]: Without dead ends: 708 [2024-11-28 02:55:37,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=177, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:55:37,739 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 268 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:37,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 111 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-28 02:55:37,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 581. [2024-11-28 02:55:37,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 573 states have (on average 1.1832460732984293) internal successors, (678), 580 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 678 transitions. [2024-11-28 02:55:37,773 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 678 transitions. Word has length 34 [2024-11-28 02:55:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:37,773 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 678 transitions. [2024-11-28 02:55:37,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 678 transitions. [2024-11-28 02:55:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 02:55:37,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:37,775 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:37,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:37,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:37,975 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:37,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:37,976 INFO L85 PathProgramCache]: Analyzing trace with hash 216843718, now seen corresponding path program 1 times [2024-11-28 02:55:37,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:37,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382191488] [2024-11-28 02:55:37,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:37,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 81 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 02:55:38,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:38,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382191488] [2024-11-28 02:55:38,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382191488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:38,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085440644] [2024-11-28 02:55:38,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:38,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:38,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:38,200 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:38,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:55:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:38,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:55:38,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:38,532 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 81 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 02:55:38,532 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:38,697 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 81 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 02:55:38,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085440644] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:38,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:38,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2024-11-28 02:55:38,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838948126] [2024-11-28 02:55:38,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:38,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 02:55:38,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:38,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 02:55:38,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:55:38,700 INFO L87 Difference]: Start difference. First operand 581 states and 678 transitions. Second operand has 19 states, 19 states have (on average 5.842105263157895) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:39,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:39,156 INFO L93 Difference]: Finished difference Result 1859 states and 2237 transitions. [2024-11-28 02:55:39,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:55:39,156 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.842105263157895) internal successors, (111), 19 states have internal predecessors, (111), 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 58 [2024-11-28 02:55:39,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:39,162 INFO L225 Difference]: With dead ends: 1859 [2024-11-28 02:55:39,162 INFO L226 Difference]: Without dead ends: 1313 [2024-11-28 02:55:39,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=330, Unknown=0, NotChecked=0, Total=552 [2024-11-28 02:55:39,164 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 462 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:39,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 165 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:55:39,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-11-28 02:55:39,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1295. [2024-11-28 02:55:39,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1287 states have (on average 1.1748251748251748) internal successors, (1512), 1294 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:39,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1512 transitions. [2024-11-28 02:55:39,247 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1512 transitions. Word has length 58 [2024-11-28 02:55:39,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:39,247 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1512 transitions. [2024-11-28 02:55:39,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.842105263157895) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1512 transitions. [2024-11-28 02:55:39,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 02:55:39,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:39,251 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:39,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:55:39,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:39,452 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:39,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:39,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1088899770, now seen corresponding path program 2 times [2024-11-28 02:55:39,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:39,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41122849] [2024-11-28 02:55:39,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:55:39,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:39,483 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:55:39,485 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:55:39,534 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2024-11-28 02:55:39,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:39,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41122849] [2024-11-28 02:55:39,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41122849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:39,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659660505] [2024-11-28 02:55:39,535 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:55:39,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:39,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:39,537 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:39,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:55:39,608 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:55:39,608 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:55:39,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:55:39,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:40,137 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 154 proven. 48 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2024-11-28 02:55:40,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:40,410 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2024-11-28 02:55:40,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659660505] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:40,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:40,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 02:55:40,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523958233] [2024-11-28 02:55:40,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:40,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:55:40,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:40,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:55:40,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:55:40,412 INFO L87 Difference]: Start difference. First operand 1295 states and 1512 transitions. Second operand has 11 states, 10 states have (on average 8.8) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:40,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:40,821 INFO L93 Difference]: Finished difference Result 1299 states and 1512 transitions. [2024-11-28 02:55:40,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:55:40,822 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 11 states have internal predecessors, (88), 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 100 [2024-11-28 02:55:40,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:40,827 INFO L225 Difference]: With dead ends: 1299 [2024-11-28 02:55:40,828 INFO L226 Difference]: Without dead ends: 1296 [2024-11-28 02:55:40,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:55:40,829 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 19 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:40,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 65 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:55:40,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2024-11-28 02:55:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1146. [2024-11-28 02:55:40,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1138 states have (on average 1.1537785588752196) internal successors, (1313), 1145 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:40,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1313 transitions. [2024-11-28 02:55:40,930 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1313 transitions. Word has length 100 [2024-11-28 02:55:40,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:40,930 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1313 transitions. [2024-11-28 02:55:40,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:40,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1313 transitions. [2024-11-28 02:55:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 02:55:40,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:40,932 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:40,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:55:41,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:41,136 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:41,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1234985728, now seen corresponding path program 1 times [2024-11-28 02:55:41,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:41,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782012255] [2024-11-28 02:55:41,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:41,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2024-11-28 02:55:41,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:41,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782012255] [2024-11-28 02:55:41,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782012255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:41,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:41,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:55:41,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256036967] [2024-11-28 02:55:41,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:41,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:41,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:41,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:41,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:41,364 INFO L87 Difference]: Start difference. First operand 1146 states and 1313 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:41,470 INFO L93 Difference]: Finished difference Result 1898 states and 2172 transitions. [2024-11-28 02:55:41,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:41,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 139 [2024-11-28 02:55:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:41,475 INFO L225 Difference]: With dead ends: 1898 [2024-11-28 02:55:41,475 INFO L226 Difference]: Without dead ends: 1146 [2024-11-28 02:55:41,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:41,477 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:41,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 55 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:41,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-11-28 02:55:41,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1146. [2024-11-28 02:55:41,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1138 states have (on average 1.1528998242530755) internal successors, (1312), 1145 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1312 transitions. [2024-11-28 02:55:41,535 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1312 transitions. Word has length 139 [2024-11-28 02:55:41,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:41,535 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1312 transitions. [2024-11-28 02:55:41,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:41,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1312 transitions. [2024-11-28 02:55:41,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 02:55:41,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:41,540 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:41,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:55:41,540 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:41,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:41,541 INFO L85 PathProgramCache]: Analyzing trace with hash 74063042, now seen corresponding path program 1 times [2024-11-28 02:55:41,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:41,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423260502] [2024-11-28 02:55:41,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:41,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:41,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 762 proven. 1 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2024-11-28 02:55:41,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:41,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423260502] [2024-11-28 02:55:41,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423260502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:41,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724429615] [2024-11-28 02:55:41,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:41,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:41,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:41,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:41,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:55:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:41,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:55:42,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 759 proven. 325 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-28 02:55:42,497 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 759 proven. 325 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-28 02:55:42,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724429615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:42,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:42,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 14] total 28 [2024-11-28 02:55:42,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99810971] [2024-11-28 02:55:42,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:42,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 02:55:42,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:42,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 02:55:42,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=446, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:55:42,943 INFO L87 Difference]: Start difference. First operand 1146 states and 1312 transitions. Second operand has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:45,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:45,921 INFO L93 Difference]: Finished difference Result 4674 states and 5529 transitions. [2024-11-28 02:55:45,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-28 02:55:45,922 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 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 164 [2024-11-28 02:55:45,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:45,935 INFO L225 Difference]: With dead ends: 4674 [2024-11-28 02:55:45,935 INFO L226 Difference]: Without dead ends: 3533 [2024-11-28 02:55:45,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2116 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2483, Invalid=4489, Unknown=0, NotChecked=0, Total=6972 [2024-11-28 02:55:45,945 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 3628 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:45,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3628 Valid, 148 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:55:45,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2024-11-28 02:55:46,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 2569. [2024-11-28 02:55:46,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 2561 states have (on average 1.138227254978524) internal successors, (2915), 2568 states have internal predecessors, (2915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:46,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 2915 transitions. [2024-11-28 02:55:46,077 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 2915 transitions. Word has length 164 [2024-11-28 02:55:46,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:46,078 INFO L471 AbstractCegarLoop]: Abstraction has 2569 states and 2915 transitions. [2024-11-28 02:55:46,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:46,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 2915 transitions. [2024-11-28 02:55:46,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-28 02:55:46,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:46,088 INFO L218 NwaCegarLoop]: trace histogram [67, 67, 66, 66, 66, 66, 66, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:46,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:46,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:46,289 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:46,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:46,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1342347152, now seen corresponding path program 2 times [2024-11-28 02:55:46,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:46,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349635669] [2024-11-28 02:55:46,290 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:55:46,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:46,344 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:55:46,344 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:55:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 15441 backedges. 0 proven. 7083 refuted. 0 times theorem prover too weak. 8358 trivial. 0 not checked. [2024-11-28 02:55:46,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:46,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349635669] [2024-11-28 02:55:46,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349635669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:46,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552860745] [2024-11-28 02:55:46,382 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:55:46,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:46,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:46,385 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:46,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:55:46,520 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:55:46,520 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:55:46,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:55:46,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 15441 backedges. 6879 proven. 204 refuted. 0 times theorem prover too weak. 8358 trivial. 0 not checked. [2024-11-28 02:55:47,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:48,433 INFO L134 CoverageAnalysis]: Checked inductivity of 15441 backedges. 0 proven. 7083 refuted. 0 times theorem prover too weak. 8358 trivial. 0 not checked. [2024-11-28 02:55:48,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552860745] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:48,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:48,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-28 02:55:48,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259633218] [2024-11-28 02:55:48,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:48,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:55:48,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:48,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:55:48,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:55:48,438 INFO L87 Difference]: Start difference. First operand 2569 states and 2915 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:48,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:48,624 INFO L93 Difference]: Finished difference Result 2569 states and 2915 transitions. [2024-11-28 02:55:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:55:48,625 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 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 491 [2024-11-28 02:55:48,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:48,634 INFO L225 Difference]: With dead ends: 2569 [2024-11-28 02:55:48,634 INFO L226 Difference]: Without dead ends: 2563 [2024-11-28 02:55:48,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 976 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:55:48,636 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 156 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:48,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 17 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:48,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2024-11-28 02:55:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 1919. [2024-11-28 02:55:48,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1919 states, 1917 states have (on average 1.0662493479394888) internal successors, (2044), 1918 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1919 states to 1919 states and 2044 transitions. [2024-11-28 02:55:48,797 INFO L78 Accepts]: Start accepts. Automaton has 1919 states and 2044 transitions. Word has length 491 [2024-11-28 02:55:48,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:48,798 INFO L471 AbstractCegarLoop]: Abstraction has 1919 states and 2044 transitions. [2024-11-28 02:55:48,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:48,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1919 states and 2044 transitions. [2024-11-28 02:55:48,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2024-11-28 02:55:48,818 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:48,819 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:48,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:49,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:49,019 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:55:49,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:49,020 INFO L85 PathProgramCache]: Analyzing trace with hash 454380120, now seen corresponding path program 1 times [2024-11-28 02:55:49,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:49,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822085341] [2024-11-28 02:55:49,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:49,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 9649 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9648 trivial. 0 not checked. [2024-11-28 02:55:49,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:49,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822085341] [2024-11-28 02:55:49,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822085341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:49,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229773295] [2024-11-28 02:55:49,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:49,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:49,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:49,989 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:49,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:55:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:50,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 02:55:50,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:51,547 INFO L134 CoverageAnalysis]: Checked inductivity of 9649 backedges. 3437 proven. 1639 refuted. 0 times theorem prover too weak. 4573 trivial. 0 not checked. [2024-11-28 02:55:51,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 9649 backedges. 3437 proven. 1639 refuted. 0 times theorem prover too weak. 4573 trivial. 0 not checked. [2024-11-28 02:55:52,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229773295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:52,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:52,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 26, 26] total 52 [2024-11-28 02:55:52,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210553262] [2024-11-28 02:55:52,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:52,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-28 02:55:52,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:52,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-28 02:55:52,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1186, Invalid=1466, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 02:55:52,631 INFO L87 Difference]: Start difference. First operand 1919 states and 2044 transitions. Second operand has 52 states, 52 states have (on average 7.211538461538462) internal successors, (375), 52 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:00,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:00,703 INFO L93 Difference]: Finished difference Result 6562 states and 7312 transitions. [2024-11-28 02:56:00,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2024-11-28 02:56:00,704 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 7.211538461538462) internal successors, (375), 52 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 582 [2024-11-28 02:56:00,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:00,721 INFO L225 Difference]: With dead ends: 6562 [2024-11-28 02:56:00,721 INFO L226 Difference]: Without dead ends: 4804 [2024-11-28 02:56:00,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1282 GetRequests, 1116 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9132 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=9863, Invalid=18193, Unknown=0, NotChecked=0, Total=28056 [2024-11-28 02:56:00,731 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 8005 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8005 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:00,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8005 Valid, 158 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 02:56:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4804 states. [2024-11-28 02:56:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4804 to 3887. [2024-11-28 02:56:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3887 states, 3885 states have (on average 1.0633204633204634) internal successors, (4131), 3886 states have internal predecessors, (4131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3887 states to 3887 states and 4131 transitions. [2024-11-28 02:56:01,068 INFO L78 Accepts]: Start accepts. Automaton has 3887 states and 4131 transitions. Word has length 582 [2024-11-28 02:56:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:01,069 INFO L471 AbstractCegarLoop]: Abstraction has 3887 states and 4131 transitions. [2024-11-28 02:56:01,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 7.211538461538462) internal successors, (375), 52 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:01,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3887 states and 4131 transitions. [2024-11-28 02:56:01,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1330 [2024-11-28 02:56:01,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:01,143 INFO L218 NwaCegarLoop]: trace histogram [185, 185, 185, 185, 184, 184, 184, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1] [2024-11-28 02:56:01,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 02:56:01,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 02:56:01,344 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:56:01,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:01,345 INFO L85 PathProgramCache]: Analyzing trace with hash 720146484, now seen corresponding path program 1 times [2024-11-28 02:56:01,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:01,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609471991] [2024-11-28 02:56:01,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:01,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:12,339 INFO L134 CoverageAnalysis]: Checked inductivity of 119569 backedges. 44960 proven. 7291 refuted. 0 times theorem prover too weak. 67318 trivial. 0 not checked. [2024-11-28 02:56:12,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:12,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609471991] [2024-11-28 02:56:12,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609471991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:12,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387703319] [2024-11-28 02:56:12,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:12,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:12,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:12,342 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:12,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:56:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:12,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 02:56:12,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 119569 backedges. 44960 proven. 7291 refuted. 0 times theorem prover too weak. 67318 trivial. 0 not checked. [2024-11-28 02:56:15,279 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 119569 backedges. 44960 proven. 7291 refuted. 0 times theorem prover too weak. 67318 trivial. 0 not checked. [2024-11-28 02:56:19,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387703319] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:56:19,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:56:19,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 145 [2024-11-28 02:56:19,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624063238] [2024-11-28 02:56:19,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:19,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-11-28 02:56:19,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:19,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-11-28 02:56:19,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9219, Invalid=11661, Unknown=0, NotChecked=0, Total=20880 [2024-11-28 02:56:19,748 INFO L87 Difference]: Start difference. First operand 3887 states and 4131 transitions. Second operand has 145 states, 145 states have (on average 6.889655172413793) internal successors, (999), 145 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:32,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:32,551 INFO L93 Difference]: Finished difference Result 11381 states and 12588 transitions. [2024-11-28 02:56:32,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-28 02:56:32,553 INFO L78 Accepts]: Start accepts. Automaton has has 145 states, 145 states have (on average 6.889655172413793) internal successors, (999), 145 states have internal predecessors, (999), 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 1329 [2024-11-28 02:56:32,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:32,589 INFO L225 Difference]: With dead ends: 11381 [2024-11-28 02:56:32,589 INFO L226 Difference]: Without dead ends: 7823 [2024-11-28 02:56:32,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2753 GetRequests, 2563 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13345 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=13872, Invalid=22800, Unknown=0, NotChecked=0, Total=36672 [2024-11-28 02:56:32,604 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 6281 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6281 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:32,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6281 Valid, 790 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 02:56:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7823 states. [2024-11-28 02:56:33,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7823 to 7823. [2024-11-28 02:56:33,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7823 states, 7821 states have (on average 1.0621403912543153) internal successors, (8307), 7822 states have internal predecessors, (8307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7823 states to 7823 states and 8307 transitions. [2024-11-28 02:56:33,226 INFO L78 Accepts]: Start accepts. Automaton has 7823 states and 8307 transitions. Word has length 1329 [2024-11-28 02:56:33,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:33,228 INFO L471 AbstractCegarLoop]: Abstraction has 7823 states and 8307 transitions. [2024-11-28 02:56:33,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 6.889655172413793) internal successors, (999), 145 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:33,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7823 states and 8307 transitions. [2024-11-28 02:56:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2674 [2024-11-28 02:56:33,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:33,294 INFO L218 NwaCegarLoop]: trace histogram [377, 377, 377, 377, 376, 376, 376, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1] [2024-11-28 02:56:33,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:33,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 02:56:33,495 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:56:33,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash -87285708, now seen corresponding path program 2 times [2024-11-28 02:56:33,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:33,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620631940] [2024-11-28 02:56:33,497 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:56:33,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:33,863 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:56:33,863 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:56:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 496945 backedges. 0 proven. 1896 refuted. 0 times theorem prover too weak. 495049 trivial. 0 not checked. [2024-11-28 02:56:33,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:33,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620631940] [2024-11-28 02:56:33,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620631940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:33,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610013521] [2024-11-28 02:56:33,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:56:33,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:33,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:33,933 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:33,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:56:34,528 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:56:34,528 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:56:34,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:56:34,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 496945 backedges. 0 proven. 1896 refuted. 0 times theorem prover too weak. 495049 trivial. 0 not checked. [2024-11-28 02:56:40,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 496945 backedges. 0 proven. 1896 refuted. 0 times theorem prover too weak. 495049 trivial. 0 not checked. [2024-11-28 02:56:44,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610013521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:56:44,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:56:44,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 02:56:44,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568711487] [2024-11-28 02:56:44,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:44,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:56:44,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:44,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:56:44,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:56:44,673 INFO L87 Difference]: Start difference. First operand 7823 states and 8307 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:45,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:45,113 INFO L93 Difference]: Finished difference Result 7825 states and 8307 transitions. [2024-11-28 02:56:45,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:56:45,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 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 2673 [2024-11-28 02:56:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:45,134 INFO L225 Difference]: With dead ends: 7825 [2024-11-28 02:56:45,134 INFO L226 Difference]: Without dead ends: 7823 [2024-11-28 02:56:45,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5356 GetRequests, 5339 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:56:45,137 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 299 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:45,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 23 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:56:45,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7823 states. [2024-11-28 02:56:45,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7823 to 6856. [2024-11-28 02:56:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6856 states, 6854 states have (on average 1.0291800408520573) internal successors, (7054), 6855 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6856 states to 6856 states and 7054 transitions. [2024-11-28 02:56:45,618 INFO L78 Accepts]: Start accepts. Automaton has 6856 states and 7054 transitions. Word has length 2673 [2024-11-28 02:56:45,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:45,622 INFO L471 AbstractCegarLoop]: Abstraction has 6856 states and 7054 transitions. [2024-11-28 02:56:45,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:45,622 INFO L276 IsEmpty]: Start isEmpty. Operand 6856 states and 7054 transitions. [2024-11-28 02:56:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3344 [2024-11-28 02:56:45,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:45,692 INFO L218 NwaCegarLoop]: trace histogram [472, 472, 472, 472, 471, 471, 471, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 1, 1, 1] [2024-11-28 02:56:45,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:56:45,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 02:56:45,893 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 02:56:45,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:45,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1509642198, now seen corresponding path program 3 times [2024-11-28 02:56:45,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:45,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086731044] [2024-11-28 02:56:45,895 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:56:45,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:46,200 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 02:56:46,200 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:56:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 779591 backedges. 0 proven. 253849 refuted. 0 times theorem prover too weak. 525742 trivial. 0 not checked. [2024-11-28 02:56:46,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:46,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086731044] [2024-11-28 02:56:46,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086731044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:46,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697693865] [2024-11-28 02:56:46,286 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:56:46,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:46,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:46,289 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:46,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:56:46,969 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 02:56:46,969 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:56:46,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:56:47,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 779591 backedges. 251965 proven. 1884 refuted. 0 times theorem prover too weak. 525742 trivial. 0 not checked. [2024-11-28 02:56:53,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 779591 backedges. 0 proven. 253849 refuted. 0 times theorem prover too weak. 525742 trivial. 0 not checked. [2024-11-28 02:56:58,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697693865] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:56:58,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:56:58,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-28 02:56:58,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367915091] [2024-11-28 02:56:58,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:58,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:56:58,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:58,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:56:58,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:56:58,148 INFO L87 Difference]: Start difference. First operand 6856 states and 7054 transitions. Second operand has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:58,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:58,522 INFO L93 Difference]: Finished difference Result 6856 states and 7054 transitions. [2024-11-28 02:56:58,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:56:58,522 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3343 [2024-11-28 02:56:58,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:58,528 INFO L225 Difference]: With dead ends: 6856 [2024-11-28 02:56:58,528 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:56:58,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6695 GetRequests, 6678 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:56:58,533 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 70 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:58,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 14 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:56:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:56:58,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:56:58,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:58,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:56:58,536 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3343 [2024-11-28 02:56:58,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:58,536 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:56:58,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:56:58,536 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:56:58,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:56:58,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2024-11-28 02:56:58,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2024-11-28 02:56:58,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2024-11-28 02:56:58,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2024-11-28 02:56:58,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2024-11-28 02:56:58,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2024-11-28 02:56:58,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2024-11-28 02:56:58,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2024-11-28 02:56:58,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2024-11-28 02:56:58,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2024-11-28 02:56:58,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2024-11-28 02:56:58,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2024-11-28 02:56:58,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2024-11-28 02:56:58,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2024-11-28 02:56:58,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2024-11-28 02:56:58,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2024-11-28 02:56:58,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2024-11-28 02:56:58,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2024-11-28 02:56:58,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2024-11-28 02:56:58,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2024-11-28 02:56:58,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:56:58,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 02:56:58,746 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:58,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:57:31,278 WARN L286 SmtUtils]: Spent 32.47s on a formula simplification. DAG size of input: 1443 DAG size of output: 845 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-28 02:58:55,145 WARN L286 SmtUtils]: Spent 1.40m on a formula simplification. DAG size of input: 1085 DAG size of output: 838 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-28 02:59:12,445 WARN L286 SmtUtils]: Spent 12.13s on a formula simplification. DAG size of input: 838 DAG size of output: 23 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-28 02:59:12,450 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:59:12,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:59:12 BoogieIcfgContainer [2024-11-28 02:59:12,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:59:12,479 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:59:12,479 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:59:12,479 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:59:12,480 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:55:31" (3/4) ... [2024-11-28 02:59:12,482 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:59:12,498 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-28 02:59:12,499 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 02:59:12,499 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:59:12,499 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:59:12,604 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:59:12,604 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:59:12,604 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:59:12,606 INFO L158 Benchmark]: Toolchain (without parser) took 221577.56ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 119.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-11-28 02:59:12,606 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:59:12,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.75ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 108.6MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:59:12,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.63ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 107.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:59:12,608 INFO L158 Benchmark]: Boogie Preprocessor took 53.80ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 105.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:59:12,608 INFO L158 Benchmark]: RCFGBuilder took 406.53ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 92.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:59:12,609 INFO L158 Benchmark]: TraceAbstraction took 220615.16ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 91.3MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 766.0MB. Max. memory is 16.1GB. [2024-11-28 02:59:12,611 INFO L158 Benchmark]: Witness Printer took 125.56ms. Allocated memory is still 1.3GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:59:12,612 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.75ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 108.6MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.63ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 107.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.80ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 105.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 406.53ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 92.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 220615.16ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 91.3MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 766.0MB. Max. memory is 16.1GB. * Witness Printer took 125.56ms. Allocated memory is still 1.3GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: 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 1 procedures, 62 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 86.8s, OverallIterations: 17, TraceHistogramMax: 472, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.3s, AutomataDifference: 28.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20421 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20421 mSDsluCounter, 2056 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1670 mSDsCounter, 1568 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4873 IncrementalHoareTripleChecker+Invalid, 6441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1568 mSolverCounterUnsat, 386 mSDtfsCounter, 4873 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18031 GetRequests, 17442 SyntacticMatches, 0 SemanticMatches, 589 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25198 ImplicationChecksByTransitivity, 19.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7823occurred in iteration=15, InterpolantAutomatonStates: 427, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 3835 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 48.6s InterpolantComputationTime, 17858 NumberOfCodeBlocks, 4728 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 26642 ConstructedInterpolants, 0 QuantifiedInterpolants, 89348 SizeOfPredicates, 12 NumberOfNonLiveVariables, 4593 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 40 InterpolantComputations, 6 PerfectInterpolantSequences, 3714780/4270943 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((((((((long long) i + j) + k) <= 2147483647) && (k <= 2147483643)) && (i <= 999)) && (0 <= j)) && (0 <= i)) && (1 <= k)) && (j <= 999)) && (n == 1000)) || ((((((i <= 999) && (0 <= j)) && (k == 0)) && (0 <= i)) && (j <= 999)) && (n == 1000))) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((((((((((((long long) i + j) + k) <= 2147483647) && (k <= 2147483643)) && (0 <= j)) && (0 <= i)) && (((long long) i + 1) <= n)) && (((long long) j + 1) <= n)) && (1 <= k)) && (n == 1000)) || ((((((0 <= j) && (k == 0)) && (0 <= i)) && (((long long) i + 1) <= n)) && (((long long) j + 1) <= n)) && (n == 1000))) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((0 <= i) && ((((long long) 2 * n) + i) <= 2147483649)) && (n == 1000)) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((0 <= j) && ((((long long) i + j) + n) <= 2147483648)) && (0 <= i)) && (((long long) i + 1) <= n)) && (n == 1000)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((i <= 999) && (0 <= j)) && (((long long) i + j) <= 2147482648)) && (0 <= i)) && (n == 1000)) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((0 <= i) && (i <= 2147481649)) && (n == 1000)) RESULT: Ultimate proved your program to be correct! [2024-11-28 02:59:12,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5faa2d-751b-4da8-837b-a873e04ae560/bin/uautomizer-verify-aQ6SnzHsRB/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