./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-009.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_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-009.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1 --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 467fcaafa9af0a00772f5009c99943c6cb7078cb0bca94a00a243b41a6183129 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:40:26,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:40:26,948 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 13:40:26,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:40:26,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:40:26,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:40:26,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:40:26,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:40:26,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:40:26,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:40:26,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:40:26,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:40:26,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:40:26,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:40:26,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:40:26,978 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 13:40:26,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:40:26,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:40:26,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:40:26,979 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:40:26,979 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:40:26,979 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:40:26,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:40:26,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:40:26,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:40:26,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:40:26,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:40:26,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:40:26,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:40:26,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:40:26,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:40:26,981 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_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1 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 -> 467fcaafa9af0a00772f5009c99943c6cb7078cb0bca94a00a243b41a6183129 [2024-12-02 13:40:27,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:40:27,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:40:27,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:40:27,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:40:27,224 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:40:27,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/xcsp/AllInterval-009.c [2024-12-02 13:40:29,879 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/data/ca4e6e16b/48f499a1b5314202b3c930c3eb098e91/FLAGa65c51243 [2024-12-02 13:40:30,074 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:40:30,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/sv-benchmarks/c/xcsp/AllInterval-009.c [2024-12-02 13:40:30,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/data/ca4e6e16b/48f499a1b5314202b3c930c3eb098e91/FLAGa65c51243 [2024-12-02 13:40:30,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/data/ca4e6e16b/48f499a1b5314202b3c930c3eb098e91 [2024-12-02 13:40:30,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:40:30,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:40:30,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:40:30,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:40:30,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:40:30,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5408b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30, skipping insertion in model container [2024-12-02 13:40:30,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:40:30,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:40:30,603 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:40:30,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:40:30,643 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:40:30,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30 WrapperNode [2024-12-02 13:40:30,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:40:30,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:40:30,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:40:30,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:40:30,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,684 INFO L138 Inliner]: procedures = 13, calls = 114, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 289 [2024-12-02 13:40:30,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:40:30,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:40:30,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:40:30,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:40:30,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,704 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 13:40:30,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,711 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:40:30,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:40:30,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:40:30,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:40:30,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (1/1) ... [2024-12-02 13:40:30,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:40:30,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:30,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:40:30,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:40:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:40:30,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:40:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:40:30,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:40:30,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-12-02 13:40:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-12-02 13:40:30,847 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:40:30,849 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:40:31,215 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-12-02 13:40:31,215 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:40:31,230 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:40:31,230 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 13:40:31,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:40:31 BoogieIcfgContainer [2024-12-02 13:40:31,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:40:31,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:40:31,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:40:31,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:40:31,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:40:30" (1/3) ... [2024-12-02 13:40:31,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a8e402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:40:31, skipping insertion in model container [2024-12-02 13:40:31,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:30" (2/3) ... [2024-12-02 13:40:31,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a8e402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:40:31, skipping insertion in model container [2024-12-02 13:40:31,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:40:31" (3/3) ... [2024-12-02 13:40:31,237 INFO L128 eAbstractionObserver]: Analyzing ICFG AllInterval-009.c [2024-12-02 13:40:31,249 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:40:31,251 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG AllInterval-009.c that has 2 procedures, 215 locations, 1 initial locations, 0 loop locations, and 32 error locations. [2024-12-02 13:40:31,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:40:31,319 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;@3980c79a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:40:31,320 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-12-02 13:40:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 215 states, 75 states have (on average 1.5466666666666666) internal successors, (116), 107 states have internal predecessors, (116), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 13:40:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-12-02 13:40:31,357 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:31,359 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:31,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:31,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:31,365 INFO L85 PathProgramCache]: Analyzing trace with hash -36741769, now seen corresponding path program 1 times [2024-12-02 13:40:31,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:31,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260053596] [2024-12-02 13:40:31,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:31,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 18818 trivial. 0 not checked. [2024-12-02 13:40:31,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:31,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260053596] [2024-12-02 13:40:31,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260053596] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:31,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439887497] [2024-12-02 13:40:31,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:31,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:31,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:31,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:31,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:40:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:32,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:40:32,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 18818 trivial. 0 not checked. [2024-12-02 13:40:32,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:40:32,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439887497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:40:32,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:40:32,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:40:32,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759390623] [2024-12-02 13:40:32,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:40:32,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:40:32,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:32,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:40:32,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:40:32,119 INFO L87 Difference]: Start difference. First operand has 215 states, 75 states have (on average 1.5466666666666666) internal successors, (116), 107 states have internal predecessors, (116), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) [2024-12-02 13:40:32,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:32,159 INFO L93 Difference]: Finished difference Result 423 states and 755 transitions. [2024-12-02 13:40:32,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:40:32,161 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) Word has length 511 [2024-12-02 13:40:32,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:32,168 INFO L225 Difference]: With dead ends: 423 [2024-12-02 13:40:32,168 INFO L226 Difference]: Without dead ends: 208 [2024-12-02 13:40:32,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:40:32,176 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:32,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:40:32,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-12-02 13:40:32,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-12-02 13:40:32,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 70 states have (on average 1.542857142857143) internal successors, (108), 101 states have internal predecessors, (108), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:32,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 318 transitions. [2024-12-02 13:40:32,241 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 318 transitions. Word has length 511 [2024-12-02 13:40:32,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:32,241 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 318 transitions. [2024-12-02 13:40:32,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 2 states have call successors, (98) [2024-12-02 13:40:32,242 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 318 transitions. [2024-12-02 13:40:32,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-12-02 13:40:32,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:32,255 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:32,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:40:32,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 13:40:32,456 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:32,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:32,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1976392759, now seen corresponding path program 1 times [2024-12-02 13:40:32,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:32,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791212318] [2024-12-02 13:40:32,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:32,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 6 proven. 570 refuted. 0 times theorem prover too weak. 18436 trivial. 0 not checked. [2024-12-02 13:40:33,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:33,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791212318] [2024-12-02 13:40:33,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791212318] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:33,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861391687] [2024-12-02 13:40:33,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:33,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:33,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:33,697 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:33,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:40:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:33,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:40:33,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 291 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-12-02 13:40:34,670 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 291 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-12-02 13:40:35,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861391687] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:35,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:35,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-12-02 13:40:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509879769] [2024-12-02 13:40:35,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:35,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:40:35,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:35,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:40:35,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:40:35,339 INFO L87 Difference]: Start difference. First operand 208 states and 318 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (291), 1 states have call predecessors, (291), 2 states have return successors, (292), 5 states have call predecessors, (292), 6 states have call successors, (292) [2024-12-02 13:40:35,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:35,913 INFO L93 Difference]: Finished difference Result 208 states and 318 transitions. [2024-12-02 13:40:35,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:40:35,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (291), 1 states have call predecessors, (291), 2 states have return successors, (292), 5 states have call predecessors, (292), 6 states have call successors, (292) Word has length 511 [2024-12-02 13:40:35,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:35,919 INFO L225 Difference]: With dead ends: 208 [2024-12-02 13:40:35,919 INFO L226 Difference]: Without dead ends: 207 [2024-12-02 13:40:35,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1019 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:40:35,921 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 2 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:35,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1054 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:40:35,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-12-02 13:40:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-12-02 13:40:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 70 states have (on average 1.5285714285714285) internal successors, (107), 100 states have internal predecessors, (107), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:35,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 317 transitions. [2024-12-02 13:40:35,952 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 317 transitions. Word has length 511 [2024-12-02 13:40:35,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:35,955 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 317 transitions. [2024-12-02 13:40:35,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (291), 1 states have call predecessors, (291), 2 states have return successors, (292), 5 states have call predecessors, (292), 6 states have call successors, (292) [2024-12-02 13:40:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 317 transitions. [2024-12-02 13:40:35,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2024-12-02 13:40:35,960 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:35,960 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:35,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 13:40:36,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:36,161 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:36,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:36,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1138633537, now seen corresponding path program 1 times [2024-12-02 13:40:36,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:36,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904493365] [2024-12-02 13:40:36,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:36,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:36,565 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 6 proven. 285 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-12-02 13:40:36,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:36,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904493365] [2024-12-02 13:40:36,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904493365] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:36,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118697303] [2024-12-02 13:40:36,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:36,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:36,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:36,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:36,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:40:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:36,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:40:36,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:37,237 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 6 proven. 285 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-12-02 13:40:37,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 6 proven. 285 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-12-02 13:40:37,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118697303] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:37,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:37,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-12-02 13:40:37,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803891347] [2024-12-02 13:40:37,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:37,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:40:37,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:37,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:40:37,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:40:37,798 INFO L87 Difference]: Start difference. First operand 207 states and 317 transitions. Second operand has 10 states, 8 states have (on average 8.625) internal successors, (69), 10 states have internal predecessors, (69), 5 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (290), 4 states have call predecessors, (290), 5 states have call successors, (290) [2024-12-02 13:40:38,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:38,464 INFO L93 Difference]: Finished difference Result 207 states and 317 transitions. [2024-12-02 13:40:38,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:40:38,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.625) internal successors, (69), 10 states have internal predecessors, (69), 5 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (290), 4 states have call predecessors, (290), 5 states have call successors, (290) Word has length 512 [2024-12-02 13:40:38,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:38,468 INFO L225 Difference]: With dead ends: 207 [2024-12-02 13:40:38,468 INFO L226 Difference]: Without dead ends: 206 [2024-12-02 13:40:38,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1019 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:40:38,469 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:38,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1256 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:40:38,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-12-02 13:40:38,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-12-02 13:40:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 70 states have (on average 1.5142857142857142) internal successors, (106), 99 states have internal predecessors, (106), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:38,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 316 transitions. [2024-12-02 13:40:38,501 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 316 transitions. Word has length 512 [2024-12-02 13:40:38,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:38,502 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 316 transitions. [2024-12-02 13:40:38,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.625) internal successors, (69), 10 states have internal predecessors, (69), 5 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (290), 4 states have call predecessors, (290), 5 states have call successors, (290) [2024-12-02 13:40:38,503 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 316 transitions. [2024-12-02 13:40:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2024-12-02 13:40:38,506 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:38,507 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:38,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:40:38,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:38,707 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:38,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:38,708 INFO L85 PathProgramCache]: Analyzing trace with hash -989826397, now seen corresponding path program 1 times [2024-12-02 13:40:38,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:38,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745757858] [2024-12-02 13:40:38,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:38,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:38,921 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-12-02 13:40:38,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:38,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745757858] [2024-12-02 13:40:38,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745757858] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:40:38,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:40:38,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:40:38,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507354357] [2024-12-02 13:40:38,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:40:38,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:40:38,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:38,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:40:38,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:40:38,924 INFO L87 Difference]: Start difference. First operand 206 states and 316 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-12-02 13:40:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:39,000 INFO L93 Difference]: Finished difference Result 206 states and 316 transitions. [2024-12-02 13:40:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:40:39,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 514 [2024-12-02 13:40:39,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:39,004 INFO L225 Difference]: With dead ends: 206 [2024-12-02 13:40:39,004 INFO L226 Difference]: Without dead ends: 198 [2024-12-02 13:40:39,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:40:39,005 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 8 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:39,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 538 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:40:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-12-02 13:40:39,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-12-02 13:40:39,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 70 states have (on average 1.4) internal successors, (98), 91 states have internal predecessors, (98), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 308 transitions. [2024-12-02 13:40:39,033 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 308 transitions. Word has length 514 [2024-12-02 13:40:39,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:39,034 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 308 transitions. [2024-12-02 13:40:39,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-12-02 13:40:39,035 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 308 transitions. [2024-12-02 13:40:39,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-12-02 13:40:39,039 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:39,039 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:39,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:40:39,039 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:39,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:39,040 INFO L85 PathProgramCache]: Analyzing trace with hash -619847074, now seen corresponding path program 1 times [2024-12-02 13:40:39,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:39,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758818013] [2024-12-02 13:40:39,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:39,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:39,748 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 6 proven. 570 refuted. 0 times theorem prover too weak. 18436 trivial. 0 not checked. [2024-12-02 13:40:39,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:39,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758818013] [2024-12-02 13:40:39,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758818013] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:39,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697148669] [2024-12-02 13:40:39,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:39,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:39,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:39,751 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:39,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:40:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:39,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:40:39,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 291 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-12-02 13:40:40,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:40,943 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 291 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-12-02 13:40:40,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697148669] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:40,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:40,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-12-02 13:40:40,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121260416] [2024-12-02 13:40:40,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:40,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:40:40,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:40,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:40:40,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:40:40,947 INFO L87 Difference]: Start difference. First operand 198 states and 308 transitions. Second operand has 11 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (290), 1 states have call predecessors, (290), 2 states have return successors, (290), 4 states have call predecessors, (290), 5 states have call successors, (290) [2024-12-02 13:40:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:41,479 INFO L93 Difference]: Finished difference Result 198 states and 308 transitions. [2024-12-02 13:40:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:40:41,480 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (290), 1 states have call predecessors, (290), 2 states have return successors, (290), 4 states have call predecessors, (290), 5 states have call successors, (290) Word has length 515 [2024-12-02 13:40:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:41,483 INFO L225 Difference]: With dead ends: 198 [2024-12-02 13:40:41,483 INFO L226 Difference]: Without dead ends: 197 [2024-12-02 13:40:41,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 1026 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:40:41,484 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:41,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 950 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:40:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-12-02 13:40:41,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-12-02 13:40:41,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 90 states have internal predecessors, (97), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:41,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 307 transitions. [2024-12-02 13:40:41,510 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 307 transitions. Word has length 515 [2024-12-02 13:40:41,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:41,511 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 307 transitions. [2024-12-02 13:40:41,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 5 states have call successors, (290), 1 states have call predecessors, (290), 2 states have return successors, (290), 4 states have call predecessors, (290), 5 states have call successors, (290) [2024-12-02 13:40:41,512 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 307 transitions. [2024-12-02 13:40:41,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-12-02 13:40:41,515 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:41,516 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:41,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:40:41,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:41,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:41,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1930118915, now seen corresponding path program 1 times [2024-12-02 13:40:41,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:41,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2448040] [2024-12-02 13:40:41,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:41,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 6 proven. 288 refuted. 0 times theorem prover too weak. 19110 trivial. 0 not checked. [2024-12-02 13:40:42,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:42,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2448040] [2024-12-02 13:40:42,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2448040] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:42,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237095726] [2024-12-02 13:40:42,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:42,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:42,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:42,157 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:42,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:40:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:42,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 13:40:42,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 348 proven. 792 refuted. 0 times theorem prover too weak. 18264 trivial. 0 not checked. [2024-12-02 13:40:42,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 348 proven. 792 refuted. 0 times theorem prover too weak. 18264 trivial. 0 not checked. [2024-12-02 13:40:43,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237095726] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:43,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:43,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 10] total 19 [2024-12-02 13:40:43,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017341947] [2024-12-02 13:40:43,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:43,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:40:43,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:43,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:40:43,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:40:43,601 INFO L87 Difference]: Start difference. First operand 197 states and 307 transitions. Second operand has 20 states, 18 states have (on average 4.388888888888889) internal successors, (79), 17 states have internal predecessors, (79), 11 states have call successors, (295), 1 states have call predecessors, (295), 2 states have return successors, (297), 11 states have call predecessors, (297), 11 states have call successors, (297) [2024-12-02 13:40:44,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:44,615 INFO L93 Difference]: Finished difference Result 201 states and 314 transitions. [2024-12-02 13:40:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:40:44,616 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.388888888888889) internal successors, (79), 17 states have internal predecessors, (79), 11 states have call successors, (295), 1 states have call predecessors, (295), 2 states have return successors, (297), 11 states have call predecessors, (297), 11 states have call successors, (297) Word has length 520 [2024-12-02 13:40:44,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:44,618 INFO L225 Difference]: With dead ends: 201 [2024-12-02 13:40:44,618 INFO L226 Difference]: Without dead ends: 200 [2024-12-02 13:40:44,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 1025 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-12-02 13:40:44,619 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 34 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:44,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2286 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:40:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-12-02 13:40:44,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 196. [2024-12-02 13:40:44,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 89 states have internal predecessors, (96), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:44,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 306 transitions. [2024-12-02 13:40:44,637 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 306 transitions. Word has length 520 [2024-12-02 13:40:44,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:44,638 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 306 transitions. [2024-12-02 13:40:44,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.388888888888889) internal successors, (79), 17 states have internal predecessors, (79), 11 states have call successors, (295), 1 states have call predecessors, (295), 2 states have return successors, (297), 11 states have call predecessors, (297), 11 states have call successors, (297) [2024-12-02 13:40:44,639 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 306 transitions. [2024-12-02 13:40:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-12-02 13:40:44,641 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:44,641 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:44,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 13:40:44,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 13:40:44,842 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:44,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:44,842 INFO L85 PathProgramCache]: Analyzing trace with hash 295855947, now seen corresponding path program 1 times [2024-12-02 13:40:44,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:44,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62389688] [2024-12-02 13:40:44,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:44,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 12 proven. 282 refuted. 0 times theorem prover too weak. 19110 trivial. 0 not checked. [2024-12-02 13:40:45,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:45,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62389688] [2024-12-02 13:40:45,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62389688] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:45,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709376749] [2024-12-02 13:40:45,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:45,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:45,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:45,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:45,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 13:40:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:45,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:40:45,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:45,729 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 12 proven. 282 refuted. 0 times theorem prover too weak. 19110 trivial. 0 not checked. [2024-12-02 13:40:45,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 12 proven. 282 refuted. 0 times theorem prover too weak. 19110 trivial. 0 not checked. [2024-12-02 13:40:46,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709376749] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:46,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:46,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2024-12-02 13:40:46,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381730962] [2024-12-02 13:40:46,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:46,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 13:40:46,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:46,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 13:40:46,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:40:46,195 INFO L87 Difference]: Start difference. First operand 196 states and 306 transitions. Second operand has 13 states, 11 states have (on average 7.363636363636363) internal successors, (81), 13 states have internal predecessors, (81), 8 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (293), 7 states have call predecessors, (293), 8 states have call successors, (293) [2024-12-02 13:40:46,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:46,757 INFO L93 Difference]: Finished difference Result 196 states and 306 transitions. [2024-12-02 13:40:46,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:40:46,758 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.363636363636363) internal successors, (81), 13 states have internal predecessors, (81), 8 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (293), 7 states have call predecessors, (293), 8 states have call successors, (293) Word has length 521 [2024-12-02 13:40:46,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:46,760 INFO L225 Difference]: With dead ends: 196 [2024-12-02 13:40:46,760 INFO L226 Difference]: Without dead ends: 195 [2024-12-02 13:40:46,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1051 GetRequests, 1036 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:40:46,761 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 23 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:46,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1595 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:40:46,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-12-02 13:40:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-12-02 13:40:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 70 states have (on average 1.3571428571428572) internal successors, (95), 88 states have internal predecessors, (95), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:46,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 305 transitions. [2024-12-02 13:40:46,779 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 305 transitions. Word has length 521 [2024-12-02 13:40:46,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:46,780 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 305 transitions. [2024-12-02 13:40:46,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.363636363636363) internal successors, (81), 13 states have internal predecessors, (81), 8 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (293), 7 states have call predecessors, (293), 8 states have call successors, (293) [2024-12-02 13:40:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 305 transitions. [2024-12-02 13:40:46,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2024-12-02 13:40:46,783 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:46,783 INFO L218 NwaCegarLoop]: trace histogram [99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:46,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 13:40:46,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:46,983 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:46,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:46,984 INFO L85 PathProgramCache]: Analyzing trace with hash 571797540, now seen corresponding path program 1 times [2024-12-02 13:40:46,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:46,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200064703] [2024-12-02 13:40:46,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:46,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 18 proven. 564 refuted. 0 times theorem prover too weak. 18822 trivial. 0 not checked. [2024-12-02 13:40:47,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:47,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200064703] [2024-12-02 13:40:47,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200064703] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:47,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429251507] [2024-12-02 13:40:47,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:47,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:47,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:47,541 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:47,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 13:40:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:47,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 13:40:47,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 348 proven. 792 refuted. 0 times theorem prover too weak. 18264 trivial. 0 not checked. [2024-12-02 13:40:48,238 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:48,774 INFO L134 CoverageAnalysis]: Checked inductivity of 19404 backedges. 348 proven. 792 refuted. 0 times theorem prover too weak. 18264 trivial. 0 not checked. [2024-12-02 13:40:48,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429251507] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:48,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:48,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 11] total 22 [2024-12-02 13:40:48,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826043833] [2024-12-02 13:40:48,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:48,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 13:40:48,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:48,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 13:40:48,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:40:48,777 INFO L87 Difference]: Start difference. First operand 195 states and 305 transitions. Second operand has 23 states, 21 states have (on average 4.333333333333333) internal successors, (91), 23 states have internal predecessors, (91), 11 states have call successors, (295), 1 states have call predecessors, (295), 2 states have return successors, (297), 11 states have call predecessors, (297), 11 states have call successors, (297) [2024-12-02 13:40:49,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:49,718 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-12-02 13:40:49,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:40:49,719 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 4.333333333333333) internal successors, (91), 23 states have internal predecessors, (91), 11 states have call successors, (295), 1 states have call predecessors, (295), 2 states have return successors, (297), 11 states have call predecessors, (297), 11 states have call successors, (297) Word has length 524 [2024-12-02 13:40:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:49,722 INFO L225 Difference]: With dead ends: 199 [2024-12-02 13:40:49,722 INFO L226 Difference]: Without dead ends: 198 [2024-12-02 13:40:49,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 1033 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:40:49,723 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 62 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:49,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1772 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:40:49,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-12-02 13:40:49,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 194. [2024-12-02 13:40:49,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 87 states have internal predecessors, (94), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 304 transitions. [2024-12-02 13:40:49,739 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 304 transitions. Word has length 524 [2024-12-02 13:40:49,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:49,739 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 304 transitions. [2024-12-02 13:40:49,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 4.333333333333333) internal successors, (91), 23 states have internal predecessors, (91), 11 states have call successors, (295), 1 states have call predecessors, (295), 2 states have return successors, (297), 11 states have call predecessors, (297), 11 states have call successors, (297) [2024-12-02 13:40:49,740 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 304 transitions. [2024-12-02 13:40:49,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-12-02 13:40:49,742 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:49,742 INFO L218 NwaCegarLoop]: trace histogram [100, 100, 100, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:49,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 13:40:49,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:49,943 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:49,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash -79069549, now seen corresponding path program 1 times [2024-12-02 13:40:49,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:49,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161461817] [2024-12-02 13:40:49,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:49,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 19800 backedges. 12 proven. 285 refuted. 0 times theorem prover too weak. 19503 trivial. 0 not checked. [2024-12-02 13:40:50,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:50,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161461817] [2024-12-02 13:40:50,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161461817] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:50,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489837139] [2024-12-02 13:40:50,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:50,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:50,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:50,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:50,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 13:40:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:50,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 13:40:50,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:51,060 INFO L134 CoverageAnalysis]: Checked inductivity of 19800 backedges. 369 proven. 783 refuted. 0 times theorem prover too weak. 18648 trivial. 0 not checked. [2024-12-02 13:40:51,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:51,570 INFO L134 CoverageAnalysis]: Checked inductivity of 19800 backedges. 369 proven. 783 refuted. 0 times theorem prover too weak. 18648 trivial. 0 not checked. [2024-12-02 13:40:51,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489837139] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:51,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:51,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 10] total 19 [2024-12-02 13:40:51,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659628338] [2024-12-02 13:40:51,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:51,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:40:51,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:51,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:40:51,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:40:51,573 INFO L87 Difference]: Start difference. First operand 194 states and 304 transitions. Second operand has 20 states, 18 states have (on average 4.944444444444445) internal successors, (89), 17 states have internal predecessors, (89), 11 states have call successors, (294), 1 states have call predecessors, (294), 2 states have return successors, (296), 11 states have call predecessors, (296), 11 states have call successors, (296) [2024-12-02 13:40:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:52,334 INFO L93 Difference]: Finished difference Result 198 states and 311 transitions. [2024-12-02 13:40:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:40:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.944444444444445) internal successors, (89), 17 states have internal predecessors, (89), 11 states have call successors, (294), 1 states have call predecessors, (294), 2 states have return successors, (296), 11 states have call predecessors, (296), 11 states have call successors, (296) Word has length 529 [2024-12-02 13:40:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:52,336 INFO L225 Difference]: With dead ends: 198 [2024-12-02 13:40:52,336 INFO L226 Difference]: Without dead ends: 197 [2024-12-02 13:40:52,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 1043 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-12-02 13:40:52,337 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 50 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:52,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1540 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:40:52,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-12-02 13:40:52,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 193. [2024-12-02 13:40:52,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 86 states have internal predecessors, (93), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 303 transitions. [2024-12-02 13:40:52,365 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 303 transitions. Word has length 529 [2024-12-02 13:40:52,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:52,365 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 303 transitions. [2024-12-02 13:40:52,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.944444444444445) internal successors, (89), 17 states have internal predecessors, (89), 11 states have call successors, (294), 1 states have call predecessors, (294), 2 states have return successors, (296), 11 states have call predecessors, (296), 11 states have call successors, (296) [2024-12-02 13:40:52,366 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 303 transitions. [2024-12-02 13:40:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-12-02 13:40:52,370 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:52,370 INFO L218 NwaCegarLoop]: trace histogram [100, 100, 100, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:52,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 13:40:52,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:52,571 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:52,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:52,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1843811461, now seen corresponding path program 1 times [2024-12-02 13:40:52,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:52,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169973968] [2024-12-02 13:40:52,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:52,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 19800 backedges. 18 proven. 279 refuted. 0 times theorem prover too weak. 19503 trivial. 0 not checked. [2024-12-02 13:40:52,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:52,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169973968] [2024-12-02 13:40:52,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169973968] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:52,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975711163] [2024-12-02 13:40:52,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:52,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:52,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:52,826 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:52,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 13:40:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:53,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:40:53,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 19800 backedges. 18 proven. 279 refuted. 0 times theorem prover too weak. 19503 trivial. 0 not checked. [2024-12-02 13:40:53,310 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 19800 backedges. 18 proven. 279 refuted. 0 times theorem prover too weak. 19503 trivial. 0 not checked. [2024-12-02 13:40:53,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975711163] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:53,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:53,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-12-02 13:40:53,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118679774] [2024-12-02 13:40:53,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:53,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:40:53,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:53,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:40:53,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:40:53,667 INFO L87 Difference]: Start difference. First operand 193 states and 303 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (193), 1 states have call predecessors, (193), 2 states have return successors, (194), 4 states have call predecessors, (194), 4 states have call successors, (194) [2024-12-02 13:40:53,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:53,957 INFO L93 Difference]: Finished difference Result 193 states and 303 transitions. [2024-12-02 13:40:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:40:53,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (193), 1 states have call predecessors, (193), 2 states have return successors, (194), 4 states have call predecessors, (194), 4 states have call successors, (194) Word has length 530 [2024-12-02 13:40:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:53,960 INFO L225 Difference]: With dead ends: 193 [2024-12-02 13:40:53,960 INFO L226 Difference]: Without dead ends: 192 [2024-12-02 13:40:53,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 1056 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:40:53,961 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 6 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:53,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 756 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:40:53,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-12-02 13:40:53,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-12-02 13:40:53,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 85 states have internal predecessors, (92), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 302 transitions. [2024-12-02 13:40:53,990 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 302 transitions. Word has length 530 [2024-12-02 13:40:53,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:53,991 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 302 transitions. [2024-12-02 13:40:53,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (193), 1 states have call predecessors, (193), 2 states have return successors, (194), 4 states have call predecessors, (194), 4 states have call successors, (194) [2024-12-02 13:40:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 302 transitions. [2024-12-02 13:40:53,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-12-02 13:40:53,993 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:53,994 INFO L218 NwaCegarLoop]: trace histogram [100, 100, 100, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:54,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 13:40:54,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 13:40:54,194 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:54,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:54,195 INFO L85 PathProgramCache]: Analyzing trace with hash 650673850, now seen corresponding path program 1 times [2024-12-02 13:40:54,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:54,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287234176] [2024-12-02 13:40:54,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:54,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:54,493 INFO L134 CoverageAnalysis]: Checked inductivity of 19800 backedges. 12 proven. 285 refuted. 0 times theorem prover too weak. 19503 trivial. 0 not checked. [2024-12-02 13:40:54,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:54,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287234176] [2024-12-02 13:40:54,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287234176] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:54,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106574241] [2024-12-02 13:40:54,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:54,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:54,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:54,495 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:54,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 13:40:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:54,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 13:40:54,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 19800 backedges. 369 proven. 783 refuted. 0 times theorem prover too weak. 18648 trivial. 0 not checked. [2024-12-02 13:40:55,240 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:55,734 INFO L134 CoverageAnalysis]: Checked inductivity of 19800 backedges. 369 proven. 783 refuted. 0 times theorem prover too weak. 18648 trivial. 0 not checked. [2024-12-02 13:40:55,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106574241] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:55,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:55,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 11] total 20 [2024-12-02 13:40:55,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686372218] [2024-12-02 13:40:55,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:55,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 13:40:55,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:55,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 13:40:55,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:40:55,738 INFO L87 Difference]: Start difference. First operand 192 states and 302 transitions. Second operand has 21 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 11 states have call successors, (294), 1 states have call predecessors, (294), 2 states have return successors, (296), 10 states have call predecessors, (296), 11 states have call successors, (296) [2024-12-02 13:40:56,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:56,562 INFO L93 Difference]: Finished difference Result 196 states and 307 transitions. [2024-12-02 13:40:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:40:56,563 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 11 states have call successors, (294), 1 states have call predecessors, (294), 2 states have return successors, (296), 10 states have call predecessors, (296), 11 states have call successors, (296) Word has length 533 [2024-12-02 13:40:56,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:56,564 INFO L225 Difference]: With dead ends: 196 [2024-12-02 13:40:56,564 INFO L226 Difference]: Without dead ends: 195 [2024-12-02 13:40:56,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 1050 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:40:56,565 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 75 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:56,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2325 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:40:56,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-12-02 13:40:56,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2024-12-02 13:40:56,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 70 states have (on average 1.3) internal successors, (91), 84 states have internal predecessors, (91), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:56,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 301 transitions. [2024-12-02 13:40:56,585 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 301 transitions. Word has length 533 [2024-12-02 13:40:56,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:56,585 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 301 transitions. [2024-12-02 13:40:56,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 11 states have call successors, (294), 1 states have call predecessors, (294), 2 states have return successors, (296), 10 states have call predecessors, (296), 11 states have call successors, (296) [2024-12-02 13:40:56,585 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 301 transitions. [2024-12-02 13:40:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2024-12-02 13:40:56,589 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:56,590 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:56,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 13:40:56,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 13:40:56,790 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:56,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:56,790 INFO L85 PathProgramCache]: Analyzing trace with hash 649184601, now seen corresponding path program 1 times [2024-12-02 13:40:56,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:56,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633884349] [2024-12-02 13:40:56,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:56,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 18 proven. 282 refuted. 0 times theorem prover too weak. 19900 trivial. 0 not checked. [2024-12-02 13:40:57,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:57,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633884349] [2024-12-02 13:40:57,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633884349] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:57,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118573977] [2024-12-02 13:40:57,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:57,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:57,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:57,099 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:57,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 13:40:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:57,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:40:57,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:57,585 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 18 proven. 282 refuted. 0 times theorem prover too weak. 19900 trivial. 0 not checked. [2024-12-02 13:40:57,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:58,036 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 18 proven. 282 refuted. 0 times theorem prover too weak. 19900 trivial. 0 not checked. [2024-12-02 13:40:58,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118573977] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:58,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:58,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-12-02 13:40:58,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677525401] [2024-12-02 13:40:58,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:58,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:40:58,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:58,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:40:58,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:40:58,039 INFO L87 Difference]: Start difference. First operand 191 states and 301 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (288), 1 states have call predecessors, (288), 2 states have return successors, (289), 6 states have call predecessors, (289), 6 states have call successors, (289) [2024-12-02 13:40:58,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:40:58,455 INFO L93 Difference]: Finished difference Result 191 states and 301 transitions. [2024-12-02 13:40:58,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:40:58,456 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (288), 1 states have call predecessors, (288), 2 states have return successors, (289), 6 states have call predecessors, (289), 6 states have call successors, (289) Word has length 538 [2024-12-02 13:40:58,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:40:58,459 INFO L225 Difference]: With dead ends: 191 [2024-12-02 13:40:58,459 INFO L226 Difference]: Without dead ends: 190 [2024-12-02 13:40:58,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1079 GetRequests, 1071 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:40:58,460 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 50 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:40:58,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 656 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:40:58,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-12-02 13:40:58,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-12-02 13:40:58,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 83 states have internal predecessors, (90), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:40:58,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 300 transitions. [2024-12-02 13:40:58,489 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 300 transitions. Word has length 538 [2024-12-02 13:40:58,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:40:58,489 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 300 transitions. [2024-12-02 13:40:58,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (288), 1 states have call predecessors, (288), 2 states have return successors, (289), 6 states have call predecessors, (289), 6 states have call successors, (289) [2024-12-02 13:40:58,490 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 300 transitions. [2024-12-02 13:40:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2024-12-02 13:40:58,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:40:58,494 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:40:58,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 13:40:58,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 13:40:58,694 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:40:58,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:40:58,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1350113649, now seen corresponding path program 1 times [2024-12-02 13:40:58,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:40:58,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647573692] [2024-12-02 13:40:58,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:58,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:40:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 24 proven. 276 refuted. 0 times theorem prover too weak. 19900 trivial. 0 not checked. [2024-12-02 13:40:59,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:40:59,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647573692] [2024-12-02 13:40:59,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647573692] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:40:59,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85753833] [2024-12-02 13:40:59,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:40:59,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:40:59,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:40:59,051 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:40:59,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 13:40:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:40:59,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:40:59,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:40:59,510 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 24 proven. 276 refuted. 0 times theorem prover too weak. 19900 trivial. 0 not checked. [2024-12-02 13:40:59,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:59,868 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 24 proven. 276 refuted. 0 times theorem prover too weak. 19900 trivial. 0 not checked. [2024-12-02 13:40:59,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85753833] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:40:59,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:40:59,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 10 [2024-12-02 13:40:59,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340500926] [2024-12-02 13:40:59,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:40:59,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:40:59,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:40:59,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:40:59,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:40:59,870 INFO L87 Difference]: Start difference. First operand 190 states and 300 transitions. Second operand has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 6 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (290), 6 states have call predecessors, (290), 6 states have call successors, (290) [2024-12-02 13:41:00,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:00,313 INFO L93 Difference]: Finished difference Result 190 states and 300 transitions. [2024-12-02 13:41:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:41:00,314 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 6 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (290), 6 states have call predecessors, (290), 6 states have call successors, (290) Word has length 539 [2024-12-02 13:41:00,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:00,315 INFO L225 Difference]: With dead ends: 190 [2024-12-02 13:41:00,315 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 13:41:00,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 1073 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:41:00,316 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 66 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:00,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 990 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:41:00,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 13:41:00,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-12-02 13:41:00,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 82 states have internal predecessors, (89), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 299 transitions. [2024-12-02 13:41:00,332 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 299 transitions. Word has length 539 [2024-12-02 13:41:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:00,333 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 299 transitions. [2024-12-02 13:41:00,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 6 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (290), 6 states have call predecessors, (290), 6 states have call successors, (290) [2024-12-02 13:41:00,333 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 299 transitions. [2024-12-02 13:41:00,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-12-02 13:41:00,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:00,336 INFO L218 NwaCegarLoop]: trace histogram [101, 101, 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:00,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 13:41:00,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 13:41:00,536 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:00,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1133213312, now seen corresponding path program 1 times [2024-12-02 13:41:00,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:00,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148016740] [2024-12-02 13:41:00,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:00,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 42 proven. 552 refuted. 0 times theorem prover too weak. 19606 trivial. 0 not checked. [2024-12-02 13:41:00,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:00,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148016740] [2024-12-02 13:41:00,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148016740] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:00,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814608309] [2024-12-02 13:41:00,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:00,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:00,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:00,846 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:00,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 13:41:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:01,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 13:41:01,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:01,463 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 390 proven. 774 refuted. 0 times theorem prover too weak. 19036 trivial. 0 not checked. [2024-12-02 13:41:01,463 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 20200 backedges. 390 proven. 774 refuted. 0 times theorem prover too weak. 19036 trivial. 0 not checked. [2024-12-02 13:41:01,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814608309] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:01,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:01,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 11] total 22 [2024-12-02 13:41:01,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067494024] [2024-12-02 13:41:01,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:01,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 13:41:01,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:01,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 13:41:01,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:41:01,975 INFO L87 Difference]: Start difference. First operand 189 states and 299 transitions. Second operand has 23 states, 21 states have (on average 5.285714285714286) internal successors, (111), 23 states have internal predecessors, (111), 11 states have call successors, (293), 1 states have call predecessors, (293), 2 states have return successors, (295), 11 states have call predecessors, (295), 11 states have call successors, (295) [2024-12-02 13:41:02,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:02,782 INFO L93 Difference]: Finished difference Result 193 states and 304 transitions. [2024-12-02 13:41:02,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:41:02,783 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 5.285714285714286) internal successors, (111), 23 states have internal predecessors, (111), 11 states have call successors, (293), 1 states have call predecessors, (293), 2 states have return successors, (295), 11 states have call predecessors, (295), 11 states have call successors, (295) Word has length 542 [2024-12-02 13:41:02,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:02,784 INFO L225 Difference]: With dead ends: 193 [2024-12-02 13:41:02,784 INFO L226 Difference]: Without dead ends: 192 [2024-12-02 13:41:02,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 1069 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:41:02,785 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 111 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:02,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1591 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:41:02,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-12-02 13:41:02,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 188. [2024-12-02 13:41:02,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 81 states have internal predecessors, (88), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:02,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 298 transitions. [2024-12-02 13:41:02,817 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 298 transitions. Word has length 542 [2024-12-02 13:41:02,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:02,818 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 298 transitions. [2024-12-02 13:41:02,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 5.285714285714286) internal successors, (111), 23 states have internal predecessors, (111), 11 states have call successors, (293), 1 states have call predecessors, (293), 2 states have return successors, (295), 11 states have call predecessors, (295), 11 states have call successors, (295) [2024-12-02 13:41:02,818 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 298 transitions. [2024-12-02 13:41:02,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-12-02 13:41:02,823 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:02,823 INFO L218 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:02,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 13:41:03,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 13:41:03,023 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:03,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:03,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1781326063, now seen corresponding path program 1 times [2024-12-02 13:41:03,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:03,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228077766] [2024-12-02 13:41:03,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:03,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:03,287 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 24 proven. 279 refuted. 0 times theorem prover too weak. 20301 trivial. 0 not checked. [2024-12-02 13:41:03,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:03,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228077766] [2024-12-02 13:41:03,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228077766] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:03,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31699363] [2024-12-02 13:41:03,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:03,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:03,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:03,289 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:03,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 13:41:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:03,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 13:41:03,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 411 proven. 765 refuted. 0 times theorem prover too weak. 19428 trivial. 0 not checked. [2024-12-02 13:41:03,946 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 411 proven. 765 refuted. 0 times theorem prover too weak. 19428 trivial. 0 not checked. [2024-12-02 13:41:04,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31699363] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:04,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:04,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 10] total 19 [2024-12-02 13:41:04,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945064148] [2024-12-02 13:41:04,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:04,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:41:04,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:04,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:41:04,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:41:04,433 INFO L87 Difference]: Start difference. First operand 188 states and 298 transitions. Second operand has 20 states, 18 states have (on average 6.055555555555555) internal successors, (109), 17 states have internal predecessors, (109), 11 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (294), 11 states have call predecessors, (294), 11 states have call successors, (294) [2024-12-02 13:41:05,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:05,053 INFO L93 Difference]: Finished difference Result 192 states and 305 transitions. [2024-12-02 13:41:05,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:41:05,053 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 6.055555555555555) internal successors, (109), 17 states have internal predecessors, (109), 11 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (294), 11 states have call predecessors, (294), 11 states have call successors, (294) Word has length 547 [2024-12-02 13:41:05,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:05,055 INFO L225 Difference]: With dead ends: 192 [2024-12-02 13:41:05,055 INFO L226 Difference]: Without dead ends: 191 [2024-12-02 13:41:05,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1079 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-12-02 13:41:05,056 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 124 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:05,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1482 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:41:05,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-12-02 13:41:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 187. [2024-12-02 13:41:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 80 states have internal predecessors, (87), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:05,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 297 transitions. [2024-12-02 13:41:05,090 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 297 transitions. Word has length 547 [2024-12-02 13:41:05,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:05,090 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 297 transitions. [2024-12-02 13:41:05,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 6.055555555555555) internal successors, (109), 17 states have internal predecessors, (109), 11 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (294), 11 states have call predecessors, (294), 11 states have call successors, (294) [2024-12-02 13:41:05,091 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 297 transitions. [2024-12-02 13:41:05,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2024-12-02 13:41:05,094 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:05,094 INFO L218 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:05,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 13:41:05,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 13:41:05,295 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:05,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:05,296 INFO L85 PathProgramCache]: Analyzing trace with hash -613466679, now seen corresponding path program 1 times [2024-12-02 13:41:05,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:05,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163902439] [2024-12-02 13:41:05,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:05,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 30 proven. 273 refuted. 0 times theorem prover too weak. 20301 trivial. 0 not checked. [2024-12-02 13:41:05,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:05,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163902439] [2024-12-02 13:41:05,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163902439] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:05,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116389910] [2024-12-02 13:41:05,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:05,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:05,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:05,715 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:05,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 13:41:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:05,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:41:05,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 30 proven. 273 refuted. 0 times theorem prover too weak. 20301 trivial. 0 not checked. [2024-12-02 13:41:06,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 30 proven. 273 refuted. 0 times theorem prover too weak. 20301 trivial. 0 not checked. [2024-12-02 13:41:06,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116389910] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:06,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:06,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 12 [2024-12-02 13:41:06,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574483383] [2024-12-02 13:41:06,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:06,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 13:41:06,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:06,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 13:41:06,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:41:06,563 INFO L87 Difference]: Start difference. First operand 187 states and 297 transitions. Second operand has 13 states, 12 states have (on average 9.083333333333334) internal successors, (109), 13 states have internal predecessors, (109), 7 states have call successors, (290), 1 states have call predecessors, (290), 2 states have return successors, (291), 7 states have call predecessors, (291), 7 states have call successors, (291) [2024-12-02 13:41:07,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:07,197 INFO L93 Difference]: Finished difference Result 192 states and 304 transitions. [2024-12-02 13:41:07,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:41:07,198 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.083333333333334) internal successors, (109), 13 states have internal predecessors, (109), 7 states have call successors, (290), 1 states have call predecessors, (290), 2 states have return successors, (291), 7 states have call predecessors, (291), 7 states have call successors, (291) Word has length 548 [2024-12-02 13:41:07,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:07,199 INFO L225 Difference]: With dead ends: 192 [2024-12-02 13:41:07,200 INFO L226 Difference]: Without dead ends: 191 [2024-12-02 13:41:07,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1110 GetRequests, 1091 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:41:07,200 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 80 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:07,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1290 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:41:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-12-02 13:41:07,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 186. [2024-12-02 13:41:07,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 79 states have internal predecessors, (86), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:07,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 296 transitions. [2024-12-02 13:41:07,219 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 296 transitions. Word has length 548 [2024-12-02 13:41:07,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:07,219 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 296 transitions. [2024-12-02 13:41:07,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.083333333333334) internal successors, (109), 13 states have internal predecessors, (109), 7 states have call successors, (290), 1 states have call predecessors, (290), 2 states have return successors, (291), 7 states have call predecessors, (291), 7 states have call successors, (291) [2024-12-02 13:41:07,219 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 296 transitions. [2024-12-02 13:41:07,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-12-02 13:41:07,223 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:07,223 INFO L218 NwaCegarLoop]: trace histogram [102, 102, 102, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:07,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 13:41:07,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 13:41:07,424 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:07,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:07,424 INFO L85 PathProgramCache]: Analyzing trace with hash -699770090, now seen corresponding path program 1 times [2024-12-02 13:41:07,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:07,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11849118] [2024-12-02 13:41:07,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:07,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:07,750 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 54 proven. 546 refuted. 0 times theorem prover too weak. 20004 trivial. 0 not checked. [2024-12-02 13:41:07,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:07,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11849118] [2024-12-02 13:41:07,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11849118] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:07,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458608629] [2024-12-02 13:41:07,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:07,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:07,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:07,753 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:07,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 13:41:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:07,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 13:41:07,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:08,502 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 411 proven. 765 refuted. 0 times theorem prover too weak. 19428 trivial. 0 not checked. [2024-12-02 13:41:08,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 20604 backedges. 411 proven. 765 refuted. 0 times theorem prover too weak. 19428 trivial. 0 not checked. [2024-12-02 13:41:09,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458608629] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:09,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:09,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 11] total 22 [2024-12-02 13:41:09,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930483447] [2024-12-02 13:41:09,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:09,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 13:41:09,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:09,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 13:41:09,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:41:09,050 INFO L87 Difference]: Start difference. First operand 186 states and 296 transitions. Second operand has 23 states, 21 states have (on average 5.761904761904762) internal successors, (121), 23 states have internal predecessors, (121), 11 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (294), 11 states have call predecessors, (294), 11 states have call successors, (294) [2024-12-02 13:41:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:09,842 INFO L93 Difference]: Finished difference Result 190 states and 301 transitions. [2024-12-02 13:41:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:41:09,843 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 5.761904761904762) internal successors, (121), 23 states have internal predecessors, (121), 11 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (294), 11 states have call predecessors, (294), 11 states have call successors, (294) Word has length 551 [2024-12-02 13:41:09,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:09,846 INFO L225 Difference]: With dead ends: 190 [2024-12-02 13:41:09,846 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 13:41:09,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1115 GetRequests, 1087 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:41:09,847 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 137 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:09,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 2005 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:41:09,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 13:41:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2024-12-02 13:41:09,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 70 states have (on average 1.2142857142857142) internal successors, (85), 78 states have internal predecessors, (85), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 295 transitions. [2024-12-02 13:41:09,872 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 295 transitions. Word has length 551 [2024-12-02 13:41:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:09,873 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 295 transitions. [2024-12-02 13:41:09,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 5.761904761904762) internal successors, (121), 23 states have internal predecessors, (121), 11 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (294), 11 states have call predecessors, (294), 11 states have call successors, (294) [2024-12-02 13:41:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 295 transitions. [2024-12-02 13:41:09,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2024-12-02 13:41:09,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:09,877 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:09,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 13:41:10,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 13:41:10,077 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:10,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:10,078 INFO L85 PathProgramCache]: Analyzing trace with hash -684748363, now seen corresponding path program 1 times [2024-12-02 13:41:10,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:10,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957745851] [2024-12-02 13:41:10,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:10,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 30 proven. 276 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2024-12-02 13:41:10,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:10,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957745851] [2024-12-02 13:41:10,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957745851] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:10,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164990009] [2024-12-02 13:41:10,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:10,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:10,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:10,387 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:10,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 13:41:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:10,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:41:10,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:10,825 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 30 proven. 276 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2024-12-02 13:41:10,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 30 proven. 276 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2024-12-02 13:41:11,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164990009] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:11,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:11,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-12-02 13:41:11,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836603198] [2024-12-02 13:41:11,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:11,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:41:11,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:11,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:41:11,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:11,151 INFO L87 Difference]: Start difference. First operand 185 states and 295 transitions. Second operand has 10 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (286), 1 states have call predecessors, (286), 2 states have return successors, (287), 6 states have call predecessors, (287), 6 states have call successors, (287) [2024-12-02 13:41:11,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:11,584 INFO L93 Difference]: Finished difference Result 185 states and 295 transitions. [2024-12-02 13:41:11,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:11,585 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (286), 1 states have call predecessors, (286), 2 states have return successors, (287), 6 states have call predecessors, (287), 6 states have call successors, (287) Word has length 556 [2024-12-02 13:41:11,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:11,586 INFO L225 Difference]: With dead ends: 185 [2024-12-02 13:41:11,586 INFO L226 Difference]: Without dead ends: 184 [2024-12-02 13:41:11,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1115 GetRequests, 1107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:11,586 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 32 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:11,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 944 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:41:11,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-12-02 13:41:11,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-12-02 13:41:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 70 states have (on average 1.2) internal successors, (84), 77 states have internal predecessors, (84), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:11,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 294 transitions. [2024-12-02 13:41:11,605 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 294 transitions. Word has length 556 [2024-12-02 13:41:11,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:11,606 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 294 transitions. [2024-12-02 13:41:11,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (286), 1 states have call predecessors, (286), 2 states have return successors, (287), 6 states have call predecessors, (287), 6 states have call successors, (287) [2024-12-02 13:41:11,606 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 294 transitions. [2024-12-02 13:41:11,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2024-12-02 13:41:11,608 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:11,608 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:11,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 13:41:11,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 13:41:11,809 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:11,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:11,809 INFO L85 PathProgramCache]: Analyzing trace with hash 247637459, now seen corresponding path program 1 times [2024-12-02 13:41:11,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:11,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729976567] [2024-12-02 13:41:11,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:11,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:12,299 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 36 proven. 270 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2024-12-02 13:41:12,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:12,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729976567] [2024-12-02 13:41:12,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729976567] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:12,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499580843] [2024-12-02 13:41:12,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:12,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:12,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:12,301 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:12,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 13:41:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:12,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:41:12,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:12,727 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 36 proven. 270 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2024-12-02 13:41:12,727 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:13,091 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 36 proven. 270 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2024-12-02 13:41:13,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499580843] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:13,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:13,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 14 [2024-12-02 13:41:13,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632859323] [2024-12-02 13:41:13,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:13,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 13:41:13,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:13,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 13:41:13,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:41:13,094 INFO L87 Difference]: Start difference. First operand 184 states and 294 transitions. Second operand has 15 states, 14 states have (on average 8.571428571428571) internal successors, (120), 15 states have internal predecessors, (120), 8 states have call successors, (291), 1 states have call predecessors, (291), 2 states have return successors, (292), 8 states have call predecessors, (292), 8 states have call successors, (292) [2024-12-02 13:41:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:13,959 INFO L93 Difference]: Finished difference Result 196 states and 310 transitions. [2024-12-02 13:41:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:41:13,960 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.571428571428571) internal successors, (120), 15 states have internal predecessors, (120), 8 states have call successors, (291), 1 states have call predecessors, (291), 2 states have return successors, (292), 8 states have call predecessors, (292), 8 states have call successors, (292) Word has length 557 [2024-12-02 13:41:13,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:13,961 INFO L225 Difference]: With dead ends: 196 [2024-12-02 13:41:13,961 INFO L226 Difference]: Without dead ends: 195 [2024-12-02 13:41:13,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1133 GetRequests, 1109 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2024-12-02 13:41:13,962 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 72 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:13,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1549 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:41:13,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-12-02 13:41:13,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 183. [2024-12-02 13:41:13,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 76 states have internal predecessors, (83), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:13,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 293 transitions. [2024-12-02 13:41:13,995 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 293 transitions. Word has length 557 [2024-12-02 13:41:13,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:13,995 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 293 transitions. [2024-12-02 13:41:13,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.571428571428571) internal successors, (120), 15 states have internal predecessors, (120), 8 states have call successors, (291), 1 states have call predecessors, (291), 2 states have return successors, (292), 8 states have call predecessors, (292), 8 states have call successors, (292) [2024-12-02 13:41:13,995 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 293 transitions. [2024-12-02 13:41:13,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2024-12-02 13:41:13,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:13,998 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:14,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 13:41:14,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:14,199 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:14,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:14,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1386038052, now seen corresponding path program 1 times [2024-12-02 13:41:14,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:14,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642943617] [2024-12-02 13:41:14,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:14,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:14,595 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 30 proven. 276 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2024-12-02 13:41:14,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:14,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642943617] [2024-12-02 13:41:14,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642943617] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:14,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730126717] [2024-12-02 13:41:14,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:14,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:14,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:14,597 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:14,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-02 13:41:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:14,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 13:41:14,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:15,252 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 432 proven. 756 refuted. 0 times theorem prover too weak. 19824 trivial. 0 not checked. [2024-12-02 13:41:15,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:15,717 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 432 proven. 756 refuted. 0 times theorem prover too weak. 19824 trivial. 0 not checked. [2024-12-02 13:41:15,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730126717] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:15,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:15,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 11] total 20 [2024-12-02 13:41:15,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55236872] [2024-12-02 13:41:15,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:15,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 13:41:15,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:15,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 13:41:15,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:41:15,719 INFO L87 Difference]: Start difference. First operand 183 states and 293 transitions. Second operand has 21 states, 19 states have (on average 6.631578947368421) internal successors, (126), 20 states have internal predecessors, (126), 11 states have call successors, (291), 1 states have call predecessors, (291), 2 states have return successors, (293), 10 states have call predecessors, (293), 11 states have call successors, (293) [2024-12-02 13:41:16,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:16,633 INFO L93 Difference]: Finished difference Result 187 states and 298 transitions. [2024-12-02 13:41:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:41:16,634 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 6.631578947368421) internal successors, (126), 20 states have internal predecessors, (126), 11 states have call successors, (291), 1 states have call predecessors, (291), 2 states have return successors, (293), 10 states have call predecessors, (293), 11 states have call successors, (293) Word has length 560 [2024-12-02 13:41:16,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:16,635 INFO L225 Difference]: With dead ends: 187 [2024-12-02 13:41:16,635 INFO L226 Difference]: Without dead ends: 186 [2024-12-02 13:41:16,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1131 GetRequests, 1104 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:41:16,636 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 153 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:16,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1679 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:41:16,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-12-02 13:41:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 182. [2024-12-02 13:41:16,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 75 states have internal predecessors, (82), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:16,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 292 transitions. [2024-12-02 13:41:16,657 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 292 transitions. Word has length 560 [2024-12-02 13:41:16,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:16,658 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 292 transitions. [2024-12-02 13:41:16,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 6.631578947368421) internal successors, (126), 20 states have internal predecessors, (126), 11 states have call successors, (291), 1 states have call predecessors, (291), 2 states have return successors, (293), 10 states have call predecessors, (293), 11 states have call successors, (293) [2024-12-02 13:41:16,658 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 292 transitions. [2024-12-02 13:41:16,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2024-12-02 13:41:16,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:16,660 INFO L218 NwaCegarLoop]: trace histogram [104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:16,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-02 13:41:16,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:16,861 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:16,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:16,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1864860491, now seen corresponding path program 1 times [2024-12-02 13:41:16,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:16,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77891704] [2024-12-02 13:41:16,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:16,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 21424 backedges. 36 proven. 273 refuted. 0 times theorem prover too weak. 21115 trivial. 0 not checked. [2024-12-02 13:41:17,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:17,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77891704] [2024-12-02 13:41:17,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77891704] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:17,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499643126] [2024-12-02 13:41:17,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:17,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:17,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:17,172 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:17,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-12-02 13:41:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:17,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 13:41:17,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 21424 backedges. 453 proven. 747 refuted. 0 times theorem prover too weak. 20224 trivial. 0 not checked. [2024-12-02 13:41:17,766 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:18,302 INFO L134 CoverageAnalysis]: Checked inductivity of 21424 backedges. 453 proven. 747 refuted. 0 times theorem prover too weak. 20224 trivial. 0 not checked. [2024-12-02 13:41:18,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499643126] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:18,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:18,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 10] total 19 [2024-12-02 13:41:18,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219831261] [2024-12-02 13:41:18,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:18,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:41:18,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:18,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:41:18,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:41:18,306 INFO L87 Difference]: Start difference. First operand 182 states and 292 transitions. Second operand has 20 states, 18 states have (on average 7.166666666666667) internal successors, (129), 17 states have internal predecessors, (129), 11 states have call successors, (290), 1 states have call predecessors, (290), 2 states have return successors, (292), 11 states have call predecessors, (292), 11 states have call successors, (292) [2024-12-02 13:41:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:18,998 INFO L93 Difference]: Finished difference Result 186 states and 299 transitions. [2024-12-02 13:41:18,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:41:18,998 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 7.166666666666667) internal successors, (129), 17 states have internal predecessors, (129), 11 states have call successors, (290), 1 states have call predecessors, (290), 2 states have return successors, (292), 11 states have call predecessors, (292), 11 states have call successors, (292) Word has length 565 [2024-12-02 13:41:18,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:18,999 INFO L225 Difference]: With dead ends: 186 [2024-12-02 13:41:18,999 INFO L226 Difference]: Without dead ends: 185 [2024-12-02 13:41:19,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1140 GetRequests, 1115 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-12-02 13:41:19,000 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 114 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:19,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1752 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:41:19,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-12-02 13:41:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 181. [2024-12-02 13:41:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 70 states have (on average 1.1571428571428573) internal successors, (81), 74 states have internal predecessors, (81), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 291 transitions. [2024-12-02 13:41:19,022 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 291 transitions. Word has length 565 [2024-12-02 13:41:19,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:19,022 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 291 transitions. [2024-12-02 13:41:19,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 7.166666666666667) internal successors, (129), 17 states have internal predecessors, (129), 11 states have call successors, (290), 1 states have call predecessors, (290), 2 states have return successors, (292), 11 states have call predecessors, (292), 11 states have call successors, (292) [2024-12-02 13:41:19,023 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 291 transitions. [2024-12-02 13:41:19,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2024-12-02 13:41:19,025 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:19,025 INFO L218 NwaCegarLoop]: trace histogram [104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:19,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-12-02 13:41:19,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 13:41:19,225 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:19,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:19,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1976100621, now seen corresponding path program 1 times [2024-12-02 13:41:19,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:19,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101234699] [2024-12-02 13:41:19,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:19,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 21424 backedges. 42 proven. 267 refuted. 0 times theorem prover too weak. 21115 trivial. 0 not checked. [2024-12-02 13:41:19,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:19,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101234699] [2024-12-02 13:41:19,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101234699] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:19,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258673517] [2024-12-02 13:41:19,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:19,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:19,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:19,669 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:19,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-12-02 13:41:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:19,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:41:19,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 21424 backedges. 42 proven. 267 refuted. 0 times theorem prover too weak. 21115 trivial. 0 not checked. [2024-12-02 13:41:20,092 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 21424 backedges. 42 proven. 267 refuted. 0 times theorem prover too weak. 21115 trivial. 0 not checked. [2024-12-02 13:41:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258673517] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:20,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:20,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 16 [2024-12-02 13:41:20,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980839377] [2024-12-02 13:41:20,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:20,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 13:41:20,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:20,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 13:41:20,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:41:20,461 INFO L87 Difference]: Start difference. First operand 181 states and 291 transitions. Second operand has 17 states, 16 states have (on average 8.1875) internal successors, (131), 17 states have internal predecessors, (131), 9 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (293), 9 states have call predecessors, (293), 9 states have call successors, (293) [2024-12-02 13:41:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:21,579 INFO L93 Difference]: Finished difference Result 200 states and 316 transitions. [2024-12-02 13:41:21,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 13:41:21,580 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.1875) internal successors, (131), 17 states have internal predecessors, (131), 9 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (293), 9 states have call predecessors, (293), 9 states have call successors, (293) Word has length 566 [2024-12-02 13:41:21,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:21,581 INFO L225 Difference]: With dead ends: 200 [2024-12-02 13:41:21,581 INFO L226 Difference]: Without dead ends: 199 [2024-12-02 13:41:21,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1156 GetRequests, 1127 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=743, Unknown=0, NotChecked=0, Total=870 [2024-12-02 13:41:21,583 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 87 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:21,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1792 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:41:21,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-12-02 13:41:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 180. [2024-12-02 13:41:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 70 states have (on average 1.1428571428571428) internal successors, (80), 73 states have internal predecessors, (80), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 290 transitions. [2024-12-02 13:41:21,605 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 290 transitions. Word has length 566 [2024-12-02 13:41:21,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:21,606 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 290 transitions. [2024-12-02 13:41:21,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.1875) internal successors, (131), 17 states have internal predecessors, (131), 9 states have call successors, (292), 1 states have call predecessors, (292), 2 states have return successors, (293), 9 states have call predecessors, (293), 9 states have call successors, (293) [2024-12-02 13:41:21,606 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 290 transitions. [2024-12-02 13:41:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-12-02 13:41:21,608 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:21,608 INFO L218 NwaCegarLoop]: trace histogram [104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:21,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-12-02 13:41:21,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:21,809 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:21,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:21,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1102874766, now seen corresponding path program 1 times [2024-12-02 13:41:21,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:21,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046555311] [2024-12-02 13:41:21,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:21,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 21424 backedges. 78 proven. 534 refuted. 0 times theorem prover too weak. 20812 trivial. 0 not checked. [2024-12-02 13:41:22,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:22,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046555311] [2024-12-02 13:41:22,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046555311] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:22,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373640498] [2024-12-02 13:41:22,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:22,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:22,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:22,175 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:22,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-12-02 13:41:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:22,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:41:22,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:22,625 INFO L134 CoverageAnalysis]: Checked inductivity of 21424 backedges. 36 proven. 273 refuted. 0 times theorem prover too weak. 21115 trivial. 0 not checked. [2024-12-02 13:41:22,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 21424 backedges. 36 proven. 273 refuted. 0 times theorem prover too weak. 21115 trivial. 0 not checked. [2024-12-02 13:41:23,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373640498] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:23,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:23,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-12-02 13:41:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535244766] [2024-12-02 13:41:23,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:23,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:41:23,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:23,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:41:23,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:41:23,032 INFO L87 Difference]: Start difference. First operand 180 states and 290 transitions. Second operand has 11 states, 10 states have (on average 13.6) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (284), 1 states have call predecessors, (284), 2 states have return successors, (284), 5 states have call predecessors, (284), 5 states have call successors, (284) [2024-12-02 13:41:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:23,584 INFO L93 Difference]: Finished difference Result 180 states and 290 transitions. [2024-12-02 13:41:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:41:23,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.6) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (284), 1 states have call predecessors, (284), 2 states have return successors, (284), 5 states have call predecessors, (284), 5 states have call successors, (284) Word has length 569 [2024-12-02 13:41:23,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:23,586 INFO L225 Difference]: With dead ends: 180 [2024-12-02 13:41:23,586 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 13:41:23,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1145 GetRequests, 1134 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:41:23,586 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 54 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:23,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 868 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:41:23,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 13:41:23,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-12-02 13:41:23,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 70 states have (on average 1.1285714285714286) internal successors, (79), 72 states have internal predecessors, (79), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:23,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 289 transitions. [2024-12-02 13:41:23,610 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 289 transitions. Word has length 569 [2024-12-02 13:41:23,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:23,610 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 289 transitions. [2024-12-02 13:41:23,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.6) internal successors, (136), 11 states have internal predecessors, (136), 5 states have call successors, (284), 1 states have call predecessors, (284), 2 states have return successors, (284), 5 states have call predecessors, (284), 5 states have call successors, (284) [2024-12-02 13:41:23,610 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 289 transitions. [2024-12-02 13:41:23,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-12-02 13:41:23,612 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:23,612 INFO L218 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:23,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-12-02 13:41:23,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:23,813 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:23,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash 935206417, now seen corresponding path program 1 times [2024-12-02 13:41:23,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:23,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280950316] [2024-12-02 13:41:23,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:23,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:24,062 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 42 proven. 270 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2024-12-02 13:41:24,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:24,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280950316] [2024-12-02 13:41:24,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280950316] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:24,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603923988] [2024-12-02 13:41:24,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:24,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:24,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:24,064 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:24,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-12-02 13:41:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:24,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 13:41:24,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:24,695 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 474 proven. 738 refuted. 0 times theorem prover too weak. 20628 trivial. 0 not checked. [2024-12-02 13:41:24,695 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 474 proven. 738 refuted. 0 times theorem prover too weak. 20628 trivial. 0 not checked. [2024-12-02 13:41:25,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603923988] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:25,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:25,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 10] total 19 [2024-12-02 13:41:25,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680666803] [2024-12-02 13:41:25,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:25,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:41:25,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:25,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:41:25,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:41:25,192 INFO L87 Difference]: Start difference. First operand 179 states and 289 transitions. Second operand has 20 states, 18 states have (on average 7.722222222222222) internal successors, (139), 17 states have internal predecessors, (139), 11 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (291), 11 states have call predecessors, (291), 11 states have call successors, (291) [2024-12-02 13:41:25,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:25,835 INFO L93 Difference]: Finished difference Result 183 states and 296 transitions. [2024-12-02 13:41:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:41:25,836 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 7.722222222222222) internal successors, (139), 17 states have internal predecessors, (139), 11 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (291), 11 states have call predecessors, (291), 11 states have call successors, (291) Word has length 574 [2024-12-02 13:41:25,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:25,838 INFO L225 Difference]: With dead ends: 183 [2024-12-02 13:41:25,838 INFO L226 Difference]: Without dead ends: 182 [2024-12-02 13:41:25,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1158 GetRequests, 1133 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-12-02 13:41:25,838 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 197 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:25,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 1347 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:41:25,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-12-02 13:41:25,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2024-12-02 13:41:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 70 states have (on average 1.1142857142857143) internal successors, (78), 71 states have internal predecessors, (78), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 288 transitions. [2024-12-02 13:41:25,863 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 288 transitions. Word has length 574 [2024-12-02 13:41:25,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:25,864 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 288 transitions. [2024-12-02 13:41:25,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 7.722222222222222) internal successors, (139), 17 states have internal predecessors, (139), 11 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (291), 11 states have call predecessors, (291), 11 states have call successors, (291) [2024-12-02 13:41:25,864 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 288 transitions. [2024-12-02 13:41:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-12-02 13:41:25,866 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:25,866 INFO L218 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:25,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-12-02 13:41:26,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:26,067 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:26,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:26,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1073371881, now seen corresponding path program 1 times [2024-12-02 13:41:26,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:26,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792002731] [2024-12-02 13:41:26,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:26,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 48 proven. 264 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2024-12-02 13:41:26,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:26,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792002731] [2024-12-02 13:41:26,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792002731] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:26,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925778601] [2024-12-02 13:41:26,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:26,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:26,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:26,572 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:26,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-12-02 13:41:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:26,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:41:26,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 48 proven. 264 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2024-12-02 13:41:27,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 48 proven. 264 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2024-12-02 13:41:27,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925778601] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:27,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:27,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 18 [2024-12-02 13:41:27,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015262516] [2024-12-02 13:41:27,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:27,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 13:41:27,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:27,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 13:41:27,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2024-12-02 13:41:27,444 INFO L87 Difference]: Start difference. First operand 178 states and 288 transitions. Second operand has 19 states, 18 states have (on average 7.888888888888889) internal successors, (142), 19 states have internal predecessors, (142), 10 states have call successors, (293), 1 states have call predecessors, (293), 2 states have return successors, (294), 10 states have call predecessors, (294), 10 states have call successors, (294) [2024-12-02 13:41:28,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:28,817 INFO L93 Difference]: Finished difference Result 204 states and 322 transitions. [2024-12-02 13:41:28,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:41:28,817 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.888888888888889) internal successors, (142), 19 states have internal predecessors, (142), 10 states have call successors, (293), 1 states have call predecessors, (293), 2 states have return successors, (294), 10 states have call predecessors, (294), 10 states have call successors, (294) Word has length 575 [2024-12-02 13:41:28,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:28,819 INFO L225 Difference]: With dead ends: 204 [2024-12-02 13:41:28,819 INFO L226 Difference]: Without dead ends: 203 [2024-12-02 13:41:28,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 1145 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=1038, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 13:41:28,820 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 105 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 2572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:28,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1969 Invalid, 2572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 13:41:28,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-12-02 13:41:28,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 177. [2024-12-02 13:41:28,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 70 states have (on average 1.1) internal successors, (77), 70 states have internal predecessors, (77), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-12-02 13:41:28,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 287 transitions. [2024-12-02 13:41:28,866 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 287 transitions. Word has length 575 [2024-12-02 13:41:28,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:28,866 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 287 transitions. [2024-12-02 13:41:28,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.888888888888889) internal successors, (142), 19 states have internal predecessors, (142), 10 states have call successors, (293), 1 states have call predecessors, (293), 2 states have return successors, (294), 10 states have call predecessors, (294), 10 states have call successors, (294) [2024-12-02 13:41:28,867 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 287 transitions. [2024-12-02 13:41:28,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2024-12-02 13:41:28,869 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:41:28,869 INFO L218 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:28,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-12-02 13:41:29,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:29,070 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2024-12-02 13:41:29,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:29,070 INFO L85 PathProgramCache]: Analyzing trace with hash -789920968, now seen corresponding path program 1 times [2024-12-02 13:41:29,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:29,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127952230] [2024-12-02 13:41:29,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:29,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 42 proven. 270 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2024-12-02 13:41:29,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:29,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127952230] [2024-12-02 13:41:29,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127952230] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:29,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405045114] [2024-12-02 13:41:29,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:29,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:29,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:29,359 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:29,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-12-02 13:41:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:29,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 13:41:29,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 474 proven. 738 refuted. 0 times theorem prover too weak. 20628 trivial. 0 not checked. [2024-12-02 13:41:30,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 474 proven. 738 refuted. 0 times theorem prover too weak. 20628 trivial. 0 not checked. [2024-12-02 13:41:30,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405045114] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:30,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:30,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 11] total 20 [2024-12-02 13:41:30,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824762831] [2024-12-02 13:41:30,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:30,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 13:41:30,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:30,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 13:41:30,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:41:30,522 INFO L87 Difference]: Start difference. First operand 177 states and 287 transitions. Second operand has 21 states, 19 states have (on average 7.684210526315789) internal successors, (146), 20 states have internal predecessors, (146), 11 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (291), 10 states have call predecessors, (291), 11 states have call successors, (291) [2024-12-02 13:41:31,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:41:31,257 INFO L93 Difference]: Finished difference Result 181 states and 292 transitions. [2024-12-02 13:41:31,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:41:31,258 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.684210526315789) internal successors, (146), 20 states have internal predecessors, (146), 11 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (291), 10 states have call predecessors, (291), 11 states have call successors, (291) Word has length 578 [2024-12-02 13:41:31,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:41:31,259 INFO L225 Difference]: With dead ends: 181 [2024-12-02 13:41:31,259 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 13:41:31,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1167 GetRequests, 1140 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:41:31,260 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 183 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:41:31,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1700 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:41:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 13:41:31,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 13:41:31,261 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) [2024-12-02 13:41:31,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 13:41:31,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 578 [2024-12-02 13:41:31,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:41:31,261 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:41:31,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.684210526315789) internal successors, (146), 20 states have internal predecessors, (146), 11 states have call successors, (289), 1 states have call predecessors, (289), 2 states have return successors, (291), 10 states have call predecessors, (291), 11 states have call successors, (291) [2024-12-02 13:41:31,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:41:31,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 13:41:31,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 32 remaining) [2024-12-02 13:41:31,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 32 remaining) [2024-12-02 13:41:31,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 32 remaining) [2024-12-02 13:41:31,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 32 remaining) [2024-12-02 13:41:31,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 32 remaining) [2024-12-02 13:41:31,266 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 32 remaining) [2024-12-02 13:41:31,267 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 32 remaining) [2024-12-02 13:41:31,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-12-02 13:41:31,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:31,471 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:31,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 13:41:38,660 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:41:38,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:41:38 BoogieIcfgContainer [2024-12-02 13:41:38,665 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:41:38,666 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:41:38,666 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:41:38,666 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:41:38,667 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:40:31" (3/4) ... [2024-12-02 13:41:38,668 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 13:41:38,672 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume [2024-12-02 13:41:38,679 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-12-02 13:41:38,680 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 13:41:38,680 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 13:41:38,681 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 13:41:38,754 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:41:38,754 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:41:38,755 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:41:38,755 INFO L158 Benchmark]: Toolchain (without parser) took 68311.68ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 118.5MB in the beginning and 167.9MB in the end (delta: -49.4MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2024-12-02 13:41:38,755 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:41:38,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.41ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 105.2MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:41:38,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.09ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 103.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:41:38,756 INFO L158 Benchmark]: Boogie Preprocessor took 34.50ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 101.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:41:38,756 INFO L158 Benchmark]: RCFGBuilder took 510.65ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 73.3MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 13:41:38,756 INFO L158 Benchmark]: TraceAbstraction took 67433.60ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 72.6MB in the beginning and 176.2MB in the end (delta: -103.6MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. [2024-12-02 13:41:38,756 INFO L158 Benchmark]: Witness Printer took 88.49ms. Allocated memory is still 218.1MB. Free memory was 176.2MB in the beginning and 167.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:41:38,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.41ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 105.2MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.09ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 103.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.50ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 101.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 510.65ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 73.3MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 67433.60ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 72.6MB in the beginning and 176.2MB in the end (delta: -103.6MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. * Witness Printer took 88.49ms. Allocated memory is still 218.1MB. Free memory was 176.2MB in the beginning and 167.9MB in the end (delta: 8.3MB). 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: 161]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 161]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 162]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 162]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 164]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 164]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 165]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 165]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 167]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 167]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 168]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 168]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 170]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 170]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 171]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 171]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 173]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 173]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 174]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 174]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 176]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 176]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 177]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 177]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 179]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 179]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 180]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 180]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 182]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 182]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 183]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 183]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 215 locations, 32 error locations. Started 1 CEGAR loops. OverallTime: 60.2s, OverallIterations: 26, TraceHistogramMax: 105, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 17.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1825 SdHoareTripleChecker+Valid, 14.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1825 mSDsluCounter, 36009 SdHoareTripleChecker+Invalid, 12.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31082 mSDsCounter, 2169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26362 IncrementalHoareTripleChecker+Invalid, 28531 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2169 mSolverCounterUnsat, 4927 mSDtfsCounter, 26362 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26893 GetRequests, 26404 SyntacticMatches, 13 SemanticMatches, 476 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1347 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=0, InterpolantAutomatonStates: 279, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 26 MinimizatonAttempts, 102 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 31.3s InterpolantComputationTime, 27656 NumberOfCodeBlocks, 27656 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 40641 ConstructedInterpolants, 0 QuantifiedInterpolants, 93203 SizeOfPredicates, 70 NumberOfNonLiveVariables, 25143 ConjunctsInSsa, 364 ConjunctsInUnsatCore, 75 InterpolantComputations, 2 PerfectInterpolantSequences, 1494106/1526700 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 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 13:41:38,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c35d7776-c959-4b53-8e75-cf02e99a5bfb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE