./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ab50d4c44616d850baf388e04d7eb1063c3cea27d21c9cbb628b158ef2bdff42 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:21:21,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:21:21,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 01:21:21,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:21:21,522 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:21:21,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:21:21,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:21:21,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:21:21,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:21:21,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:21:21,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:21:21,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:21:21,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:21:21,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:21:21,577 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:21:21,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:21:21,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:21:21,577 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:21:21,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:21:21,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:21:21,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:21:21,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:21:21,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:21:21,580 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:21:21,580 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 01:21:21,580 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:21:21,580 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:21:21,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:21:21,580 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:21:21,580 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:21:21,580 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:21:21,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:21:21,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:21:21,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:21:21,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:21:21,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:21:21,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:21:21,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:21:21,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:21:21,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:21:21,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:21:21,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:21:21,582 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:21:21,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:21:21,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:21:21,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:21:21,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:21:21,584 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:21:21,584 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:21:21,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:21:21,584 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_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab50d4c44616d850baf388e04d7eb1063c3cea27d21c9cbb628b158ef2bdff42 [2024-11-24 01:21:21,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:21:21,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:21:21,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:21:21,981 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:21:21,981 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:21:21,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c [2024-11-24 01:21:25,123 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/data/377b35ee9/1a6e9b00e7e540a68e91021425a9988f/FLAG605dcab53 [2024-11-24 01:21:25,469 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:21:25,469 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c [2024-11-24 01:21:25,487 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/data/377b35ee9/1a6e9b00e7e540a68e91021425a9988f/FLAG605dcab53 [2024-11-24 01:21:25,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/data/377b35ee9/1a6e9b00e7e540a68e91021425a9988f [2024-11-24 01:21:25,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:21:25,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:21:25,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:21:25,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:21:25,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:21:25,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76450142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25, skipping insertion in model container [2024-11-24 01:21:25,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,536 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:21:25,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:21:25,776 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:21:25,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:21:25,815 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:21:25,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25 WrapperNode [2024-11-24 01:21:25,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:21:25,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:21:25,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:21:25,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:21:25,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,857 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 147 [2024-11-24 01:21:25,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:21:25,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:21:25,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:21:25,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:21:25,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,883 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]. [2024-11-24 01:21:25,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,887 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:21:25,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:21:25,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:21:25,905 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:21:25,906 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (1/1) ... [2024-11-24 01:21:25,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:21:25,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:25,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:21:25,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:21:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:21:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:21:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:21:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:21:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:21:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:21:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 01:21:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 01:21:26,062 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:21:26,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:21:27,036 INFO L? ?]: Removed 196 outVars from TransFormulas that were not future-live. [2024-11-24 01:21:27,036 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:21:27,052 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:21:27,053 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 01:21:27,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:27 BoogieIcfgContainer [2024-11-24 01:21:27,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:21:27,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:21:27,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:21:27,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:21:27,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:21:25" (1/3) ... [2024-11-24 01:21:27,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0cb790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:21:27, skipping insertion in model container [2024-11-24 01:21:27,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:25" (2/3) ... [2024-11-24 01:21:27,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0cb790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:21:27, skipping insertion in model container [2024-11-24 01:21:27,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:27" (3/3) ... [2024-11-24 01:21:27,070 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound5.c [2024-11-24 01:21:27,083 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:21:27,085 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd2-ll_valuebound5.c that has 3 procedures, 161 locations, 1 initial locations, 2 loop locations, and 64 error locations. [2024-11-24 01:21:27,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:21:27,175 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;@63f6f581, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:21:27,175 INFO L334 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-11-24 01:21:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 82 states have (on average 1.8780487804878048) internal successors, (154), 147 states have internal predecessors, (154), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-24 01:21:27,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-24 01:21:27,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:27,190 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:27,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:27,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:27,195 INFO L85 PathProgramCache]: Analyzing trace with hash 136611064, now seen corresponding path program 1 times [2024-11-24 01:21:27,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:27,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956456503] [2024-11-24 01:21:27,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:27,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-24 01:21:27,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:27,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956456503] [2024-11-24 01:21:27,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956456503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:27,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952356522] [2024-11-24 01:21:27,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:27,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:27,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:27,374 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:27,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:21:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:27,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:21:27,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:27,522 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-24 01:21:27,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:27,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952356522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:27,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:27,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:21:27,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018913599] [2024-11-24 01:21:27,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:27,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:21:27,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:27,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:21:27,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:21:27,565 INFO L87 Difference]: Start difference. First operand has 161 states, 82 states have (on average 1.8780487804878048) internal successors, (154), 147 states have internal predecessors, (154), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:21:27,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:27,612 INFO L93 Difference]: Finished difference Result 317 states and 363 transitions. [2024-11-24 01:21:27,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:21:27,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-11-24 01:21:27,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:27,621 INFO L225 Difference]: With dead ends: 317 [2024-11-24 01:21:27,621 INFO L226 Difference]: Without dead ends: 153 [2024-11-24 01:21:27,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:21:27,628 INFO L435 NwaCegarLoop]: 170 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, 170 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 [2024-11-24 01:21:27,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:21:27,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-24 01:21:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-24 01:21:27,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 77 states have (on average 1.8311688311688312) internal successors, (141), 140 states have internal predecessors, (141), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 01:21:27,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 163 transitions. [2024-11-24 01:21:27,681 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 163 transitions. Word has length 25 [2024-11-24 01:21:27,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:27,683 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 163 transitions. [2024-11-24 01:21:27,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:21:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 163 transitions. [2024-11-24 01:21:27,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-24 01:21:27,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:27,685 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:27,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:27,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:27,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:27,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:27,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1111730756, now seen corresponding path program 1 times [2024-11-24 01:21:27,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:27,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553356264] [2024-11-24 01:21:27,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:27,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:27,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926778051] [2024-11-24 01:21:27,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:27,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:27,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:27,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:27,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:21:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:28,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:21:28,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:28,207 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:21:28,207 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:28,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:28,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553356264] [2024-11-24 01:21:28,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:28,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926778051] [2024-11-24 01:21:28,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926778051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:28,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:28,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:21:28,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928755278] [2024-11-24 01:21:28,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:28,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:21:28,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:28,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:21:28,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:21:28,210 INFO L87 Difference]: Start difference. First operand 153 states and 163 transitions. Second operand has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 01:21:28,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:28,675 INFO L93 Difference]: Finished difference Result 153 states and 163 transitions. [2024-11-24 01:21:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:21:28,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2024-11-24 01:21:28,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:28,678 INFO L225 Difference]: With dead ends: 153 [2024-11-24 01:21:28,678 INFO L226 Difference]: Without dead ends: 151 [2024-11-24 01:21:28,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:21:28,679 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 102 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:28,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 238 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:21:28,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-24 01:21:28,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-24 01:21:28,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 77 states have (on average 1.8051948051948052) internal successors, (139), 138 states have internal predecessors, (139), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 01:21:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2024-11-24 01:21:28,706 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 25 [2024-11-24 01:21:28,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:28,708 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2024-11-24 01:21:28,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 01:21:28,712 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2024-11-24 01:21:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-24 01:21:28,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:28,713 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:28,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:28,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:28,914 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:28,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:28,914 INFO L85 PathProgramCache]: Analyzing trace with hash -103915026, now seen corresponding path program 1 times [2024-11-24 01:21:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:28,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666749299] [2024-11-24 01:21:28,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:28,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:28,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321644453] [2024-11-24 01:21:28,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:28,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:28,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:28,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:28,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:21:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:28,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:21:29,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-24 01:21:29,285 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:21:29,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:29,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666749299] [2024-11-24 01:21:29,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:29,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321644453] [2024-11-24 01:21:29,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321644453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:29,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:29,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-24 01:21:29,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374560181] [2024-11-24 01:21:29,626 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:21:29,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:21:29,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:29,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:21:29,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:21:29,628 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 01:21:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:30,346 INFO L93 Difference]: Finished difference Result 151 states and 161 transitions. [2024-11-24 01:21:30,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:21:30,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 26 [2024-11-24 01:21:30,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:30,350 INFO L225 Difference]: With dead ends: 151 [2024-11-24 01:21:30,350 INFO L226 Difference]: Without dead ends: 150 [2024-11-24 01:21:30,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:21:30,354 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 190 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:30,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 238 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:21:30,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-24 01:21:30,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-24 01:21:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 77 states have (on average 1.7922077922077921) internal successors, (138), 137 states have internal predecessors, (138), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 01:21:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2024-11-24 01:21:30,393 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 26 [2024-11-24 01:21:30,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:30,394 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2024-11-24 01:21:30,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 01:21:30,394 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2024-11-24 01:21:30,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-24 01:21:30,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:30,395 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:30,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:30,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:30,600 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:30,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:30,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1012015952, now seen corresponding path program 1 times [2024-11-24 01:21:30,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:30,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979495399] [2024-11-24 01:21:30,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:30,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:21:31,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:31,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979495399] [2024-11-24 01:21:31,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979495399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:31,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771018852] [2024-11-24 01:21:31,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:31,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:31,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:31,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:31,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:21:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:31,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:21:31,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:31,136 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:31,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771018852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:31,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:31,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-24 01:21:31,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265912234] [2024-11-24 01:21:31,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:31,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:21:31,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:31,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:21:31,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:31,139 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:31,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:31,578 INFO L93 Difference]: Finished difference Result 254 states and 286 transitions. [2024-11-24 01:21:31,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:21:31,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-24 01:21:31,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:31,582 INFO L225 Difference]: With dead ends: 254 [2024-11-24 01:21:31,583 INFO L226 Difference]: Without dead ends: 244 [2024-11-24 01:21:31,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:31,587 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 88 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:31,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 216 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:21:31,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-24 01:21:31,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 201. [2024-11-24 01:21:31,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 124 states have (on average 1.782258064516129) internal successors, (221), 183 states have internal predecessors, (221), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 01:21:31,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 251 transitions. [2024-11-24 01:21:31,636 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 251 transitions. Word has length 40 [2024-11-24 01:21:31,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:31,636 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 251 transitions. [2024-11-24 01:21:31,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:31,637 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 251 transitions. [2024-11-24 01:21:31,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-24 01:21:31,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:31,639 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:31,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:31,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:31,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:31,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:31,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1012016002, now seen corresponding path program 1 times [2024-11-24 01:21:31,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:31,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063305553] [2024-11-24 01:21:31,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:31,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:31,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771704067] [2024-11-24 01:21:31,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:31,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:31,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:31,897 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:31,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:21:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:31,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:21:31,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:31,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:31,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:31,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063305553] [2024-11-24 01:21:31,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:31,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771704067] [2024-11-24 01:21:31,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771704067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:31,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:31,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:21:31,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721685608] [2024-11-24 01:21:31,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:31,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:21:31,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:31,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:21:31,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:21:31,985 INFO L87 Difference]: Start difference. First operand 201 states and 251 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 01:21:32,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:32,153 INFO L93 Difference]: Finished difference Result 345 states and 445 transitions. [2024-11-24 01:21:32,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:21:32,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2024-11-24 01:21:32,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:32,158 INFO L225 Difference]: With dead ends: 345 [2024-11-24 01:21:32,158 INFO L226 Difference]: Without dead ends: 337 [2024-11-24 01:21:32,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:21:32,160 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 83 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:32,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 270 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:21:32,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-24 01:21:32,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 298. [2024-11-24 01:21:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 213 states have (on average 1.784037558685446) internal successors, (380), 272 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 426 transitions. [2024-11-24 01:21:32,204 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 426 transitions. Word has length 40 [2024-11-24 01:21:32,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:32,204 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 426 transitions. [2024-11-24 01:21:32,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 01:21:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 426 transitions. [2024-11-24 01:21:32,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-24 01:21:32,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:32,206 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:32,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:32,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:32,407 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:32,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:32,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1884715054, now seen corresponding path program 1 times [2024-11-24 01:21:32,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:32,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814459160] [2024-11-24 01:21:32,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:32,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:21:32,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:32,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814459160] [2024-11-24 01:21:32,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814459160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:32,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219898846] [2024-11-24 01:21:32,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:32,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:32,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:32,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:32,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:21:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:32,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:21:32,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:32,794 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:32,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:32,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219898846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:32,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:32,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 01:21:32,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386213632] [2024-11-24 01:21:32,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:32,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:32,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:32,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:32,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:32,796 INFO L87 Difference]: Start difference. First operand 298 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:33,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:33,228 INFO L93 Difference]: Finished difference Result 317 states and 448 transitions. [2024-11-24 01:21:33,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:33,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-11-24 01:21:33,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:33,233 INFO L225 Difference]: With dead ends: 317 [2024-11-24 01:21:33,234 INFO L226 Difference]: Without dead ends: 316 [2024-11-24 01:21:33,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:33,237 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 58 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:33,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 197 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:21:33,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-24 01:21:33,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2024-11-24 01:21:33,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 214 states have (on average 1.780373831775701) internal successors, (381), 273 states have internal predecessors, (381), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 427 transitions. [2024-11-24 01:21:33,272 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 427 transitions. Word has length 42 [2024-11-24 01:21:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:33,273 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 427 transitions. [2024-11-24 01:21:33,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:33,273 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 427 transitions. [2024-11-24 01:21:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-24 01:21:33,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:33,274 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:33,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:21:33,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:33,478 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:33,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:33,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1884766688, now seen corresponding path program 1 times [2024-11-24 01:21:33,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:33,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136267972] [2024-11-24 01:21:33,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:33,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:21:33,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:33,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136267972] [2024-11-24 01:21:33,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136267972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:33,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953833602] [2024-11-24 01:21:33,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:33,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:33,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:33,735 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:33,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:21:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:33,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:21:33,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:33,901 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:33,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:33,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953833602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:33,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:33,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-24 01:21:33,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995460397] [2024-11-24 01:21:33,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:33,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:21:33,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:33,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:21:33,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:21:33,903 INFO L87 Difference]: Start difference. First operand 299 states and 427 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:34,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:34,673 INFO L93 Difference]: Finished difference Result 380 states and 447 transitions. [2024-11-24 01:21:34,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:21:34,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-11-24 01:21:34,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:34,676 INFO L225 Difference]: With dead ends: 380 [2024-11-24 01:21:34,676 INFO L226 Difference]: Without dead ends: 379 [2024-11-24 01:21:34,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:21:34,678 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 453 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:34,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 285 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:21:34,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-24 01:21:34,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 299. [2024-11-24 01:21:34,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 214 states have (on average 1.7757009345794392) internal successors, (380), 273 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 426 transitions. [2024-11-24 01:21:34,702 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 426 transitions. Word has length 42 [2024-11-24 01:21:34,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:34,703 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 426 transitions. [2024-11-24 01:21:34,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:34,703 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 426 transitions. [2024-11-24 01:21:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-24 01:21:34,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:34,704 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:34,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:34,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-24 01:21:34,905 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:34,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:34,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1703375659, now seen corresponding path program 1 times [2024-11-24 01:21:34,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:34,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70835337] [2024-11-24 01:21:34,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:34,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:35,092 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:21:35,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:35,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70835337] [2024-11-24 01:21:35,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70835337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:35,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209940695] [2024-11-24 01:21:35,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:35,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:35,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:35,096 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:35,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:21:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:35,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:21:35,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:35,275 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:35,275 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:35,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209940695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:35,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:35,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 01:21:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588588467] [2024-11-24 01:21:35,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:35,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:35,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:35,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:35,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:35,277 INFO L87 Difference]: Start difference. First operand 299 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:35,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:35,911 INFO L93 Difference]: Finished difference Result 317 states and 446 transitions. [2024-11-24 01:21:35,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:35,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-11-24 01:21:35,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:35,914 INFO L225 Difference]: With dead ends: 317 [2024-11-24 01:21:35,915 INFO L226 Difference]: Without dead ends: 316 [2024-11-24 01:21:35,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:35,916 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 57 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:35,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 198 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:21:35,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-24 01:21:35,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 300. [2024-11-24 01:21:35,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.7720930232558139) internal successors, (381), 274 states have internal predecessors, (381), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 427 transitions. [2024-11-24 01:21:35,940 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 427 transitions. Word has length 43 [2024-11-24 01:21:35,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:35,941 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 427 transitions. [2024-11-24 01:21:35,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:35,941 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 427 transitions. [2024-11-24 01:21:35,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-24 01:21:35,942 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:35,942 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:35,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 01:21:36,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:36,143 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:36,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:36,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1701774893, now seen corresponding path program 1 times [2024-11-24 01:21:36,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:36,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915951746] [2024-11-24 01:21:36,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:36,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:36,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779393516] [2024-11-24 01:21:36,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:36,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:36,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:36,169 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:36,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:21:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:36,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:21:36,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:36,296 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:36,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:36,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915951746] [2024-11-24 01:21:36,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:36,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779393516] [2024-11-24 01:21:36,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779393516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:36,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:36,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:21:36,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188982861] [2024-11-24 01:21:36,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:36,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:21:36,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:36,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:21:36,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:21:36,300 INFO L87 Difference]: Start difference. First operand 300 states and 427 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:36,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:36,881 INFO L93 Difference]: Finished difference Result 379 states and 445 transitions. [2024-11-24 01:21:36,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:21:36,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-11-24 01:21:36,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:36,884 INFO L225 Difference]: With dead ends: 379 [2024-11-24 01:21:36,884 INFO L226 Difference]: Without dead ends: 378 [2024-11-24 01:21:36,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:36,885 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 428 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:36,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 300 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:21:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-24 01:21:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 300. [2024-11-24 01:21:36,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.7674418604651163) internal successors, (380), 274 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 426 transitions. [2024-11-24 01:21:36,906 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 426 transitions. Word has length 43 [2024-11-24 01:21:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:36,907 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 426 transitions. [2024-11-24 01:21:36,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 426 transitions. [2024-11-24 01:21:36,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-24 01:21:36,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:36,908 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:36,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 01:21:37,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-24 01:21:37,109 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:37,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:37,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1265038068, now seen corresponding path program 1 times [2024-11-24 01:21:37,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:37,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553541278] [2024-11-24 01:21:37,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:37,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:21:37,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:37,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553541278] [2024-11-24 01:21:37,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553541278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:37,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220832170] [2024-11-24 01:21:37,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:37,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:37,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:37,224 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:37,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:21:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:37,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:37,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:37,331 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:37,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:37,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220832170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:37,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:37,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 01:21:37,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241732696] [2024-11-24 01:21:37,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:37,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:37,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:37,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:37,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:37,334 INFO L87 Difference]: Start difference. First operand 300 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:37,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:37,875 INFO L93 Difference]: Finished difference Result 349 states and 454 transitions. [2024-11-24 01:21:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:37,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-24 01:21:37,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:37,878 INFO L225 Difference]: With dead ends: 349 [2024-11-24 01:21:37,878 INFO L226 Difference]: Without dead ends: 345 [2024-11-24 01:21:37,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:37,880 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 145 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:37,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 221 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:21:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-24 01:21:37,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 301. [2024-11-24 01:21:37,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 216 states have (on average 1.7407407407407407) internal successors, (376), 275 states have internal predecessors, (376), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 422 transitions. [2024-11-24 01:21:37,913 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 422 transitions. Word has length 44 [2024-11-24 01:21:37,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:37,913 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 422 transitions. [2024-11-24 01:21:37,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:37,913 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 422 transitions. [2024-11-24 01:21:37,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-24 01:21:37,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:37,914 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:37,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:38,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:38,116 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:38,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:38,117 INFO L85 PathProgramCache]: Analyzing trace with hash 561474637, now seen corresponding path program 1 times [2024-11-24 01:21:38,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:38,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238762233] [2024-11-24 01:21:38,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:38,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:21:38,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:38,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238762233] [2024-11-24 01:21:38,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238762233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:38,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259015012] [2024-11-24 01:21:38,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:38,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:38,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:38,272 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:38,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:21:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:38,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:38,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:38,507 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:38,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259015012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:38,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:38,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 01:21:38,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602810950] [2024-11-24 01:21:38,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:38,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:38,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:38,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:38,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:38,509 INFO L87 Difference]: Start difference. First operand 301 states and 422 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:39,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:39,418 INFO L93 Difference]: Finished difference Result 348 states and 448 transitions. [2024-11-24 01:21:39,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:39,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2024-11-24 01:21:39,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:39,421 INFO L225 Difference]: With dead ends: 348 [2024-11-24 01:21:39,421 INFO L226 Difference]: Without dead ends: 344 [2024-11-24 01:21:39,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:39,422 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 142 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:39,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 227 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:21:39,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-24 01:21:39,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 302. [2024-11-24 01:21:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 217 states have (on average 1.7142857142857142) internal successors, (372), 276 states have internal predecessors, (372), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:39,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 418 transitions. [2024-11-24 01:21:39,449 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 418 transitions. Word has length 45 [2024-11-24 01:21:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:39,450 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 418 transitions. [2024-11-24 01:21:39,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:21:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 418 transitions. [2024-11-24 01:21:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-24 01:21:39,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:39,454 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:39,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 01:21:39,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:39,655 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:39,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:39,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1259260686, now seen corresponding path program 1 times [2024-11-24 01:21:39,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:39,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137813275] [2024-11-24 01:21:39,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:39,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:39,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056416206] [2024-11-24 01:21:39,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:39,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:39,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:39,679 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:39,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:21:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:39,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:21:39,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:39,791 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:39,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:39,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137813275] [2024-11-24 01:21:39,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:39,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056416206] [2024-11-24 01:21:39,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056416206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:39,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:39,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:21:39,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272321054] [2024-11-24 01:21:39,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:39,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:21:39,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:39,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:21:39,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:21:39,794 INFO L87 Difference]: Start difference. First operand 302 states and 418 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:39,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:39,987 INFO L93 Difference]: Finished difference Result 350 states and 442 transitions. [2024-11-24 01:21:39,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:21:39,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2024-11-24 01:21:39,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:39,991 INFO L225 Difference]: With dead ends: 350 [2024-11-24 01:21:39,991 INFO L226 Difference]: Without dead ends: 346 [2024-11-24 01:21:39,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:21:39,992 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 84 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:39,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 284 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:21:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-24 01:21:40,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 307. [2024-11-24 01:21:40,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6923076923076923) internal successors, (374), 280 states have internal predecessors, (374), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 01:21:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 422 transitions. [2024-11-24 01:21:40,015 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 422 transitions. Word has length 49 [2024-11-24 01:21:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:40,015 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 422 transitions. [2024-11-24 01:21:40,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 422 transitions. [2024-11-24 01:21:40,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-24 01:21:40,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:40,016 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:40,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 01:21:40,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:40,217 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:40,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:40,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1325184650, now seen corresponding path program 1 times [2024-11-24 01:21:40,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:40,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73528593] [2024-11-24 01:21:40,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:40,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:21:40,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:40,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73528593] [2024-11-24 01:21:40,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73528593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:40,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496679724] [2024-11-24 01:21:40,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:40,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:40,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:40,357 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:40,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 01:21:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:40,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:40,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:40,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:40,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496679724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:40,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:40,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 01:21:40,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191042592] [2024-11-24 01:21:40,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:40,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:40,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:40,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:40,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:40,561 INFO L87 Difference]: Start difference. First operand 307 states and 422 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:41,074 INFO L93 Difference]: Finished difference Result 328 states and 426 transitions. [2024-11-24 01:21:41,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:41,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2024-11-24 01:21:41,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:41,078 INFO L225 Difference]: With dead ends: 328 [2024-11-24 01:21:41,078 INFO L226 Difference]: Without dead ends: 326 [2024-11-24 01:21:41,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:41,079 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 163 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:41,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 214 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:21:41,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-24 01:21:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 307. [2024-11-24 01:21:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6787330316742082) internal successors, (371), 280 states have internal predecessors, (371), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 01:21:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 419 transitions. [2024-11-24 01:21:41,109 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 419 transitions. Word has length 51 [2024-11-24 01:21:41,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:41,109 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 419 transitions. [2024-11-24 01:21:41,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 419 transitions. [2024-11-24 01:21:41,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-24 01:21:41,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:41,111 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:41,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-24 01:21:41,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 01:21:41,312 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:41,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:41,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1868949008, now seen corresponding path program 1 times [2024-11-24 01:21:41,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:41,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21987318] [2024-11-24 01:21:41,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:41,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:41,509 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:21:41,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:41,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21987318] [2024-11-24 01:21:41,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21987318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:41,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020697094] [2024-11-24 01:21:41,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:41,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:41,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:41,522 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:41,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 01:21:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:41,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:41,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:41,717 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:41,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020697094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:41,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:41,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-24 01:21:41,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121415782] [2024-11-24 01:21:41,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:41,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:41,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:41,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:41,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:41,719 INFO L87 Difference]: Start difference. First operand 307 states and 419 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:42,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:42,087 INFO L93 Difference]: Finished difference Result 328 states and 423 transitions. [2024-11-24 01:21:42,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:42,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2024-11-24 01:21:42,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:42,090 INFO L225 Difference]: With dead ends: 328 [2024-11-24 01:21:42,092 INFO L226 Difference]: Without dead ends: 326 [2024-11-24 01:21:42,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:42,094 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 225 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:42,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 196 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:21:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-24 01:21:42,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 307. [2024-11-24 01:21:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.665158371040724) internal successors, (368), 280 states have internal predecessors, (368), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 01:21:42,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 416 transitions. [2024-11-24 01:21:42,119 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 416 transitions. Word has length 52 [2024-11-24 01:21:42,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:42,119 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 416 transitions. [2024-11-24 01:21:42,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:42,120 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 416 transitions. [2024-11-24 01:21:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-24 01:21:42,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:42,121 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:42,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:42,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 01:21:42,322 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:42,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:42,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1095763850, now seen corresponding path program 1 times [2024-11-24 01:21:42,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:42,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719122345] [2024-11-24 01:21:42,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:42,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:42,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680872830] [2024-11-24 01:21:42,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:42,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:42,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:42,348 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:42,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 01:21:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:42,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:42,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:42,473 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:42,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719122345] [2024-11-24 01:21:42,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680872830] [2024-11-24 01:21:42,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680872830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:42,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:42,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:42,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627973954] [2024-11-24 01:21:42,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:42,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:42,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:42,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:42,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:42,477 INFO L87 Difference]: Start difference. First operand 307 states and 416 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:42,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:42,848 INFO L93 Difference]: Finished difference Result 344 states and 430 transitions. [2024-11-24 01:21:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:42,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2024-11-24 01:21:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:42,851 INFO L225 Difference]: With dead ends: 344 [2024-11-24 01:21:42,851 INFO L226 Difference]: Without dead ends: 342 [2024-11-24 01:21:42,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:42,853 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 136 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:42,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 283 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:21:42,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-24 01:21:42,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 308. [2024-11-24 01:21:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 222 states have (on average 1.6531531531531531) internal successors, (367), 281 states have internal predecessors, (367), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-24 01:21:42,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 415 transitions. [2024-11-24 01:21:42,873 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 415 transitions. Word has length 53 [2024-11-24 01:21:42,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:42,874 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 415 transitions. [2024-11-24 01:21:42,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:42,874 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 415 transitions. [2024-11-24 01:21:42,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 01:21:42,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:42,875 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:42,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-24 01:21:43,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 01:21:43,079 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:43,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:43,080 INFO L85 PathProgramCache]: Analyzing trace with hash 391059108, now seen corresponding path program 1 times [2024-11-24 01:21:43,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:43,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533961437] [2024-11-24 01:21:43,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:43,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:43,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94976929] [2024-11-24 01:21:43,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:43,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:43,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:43,110 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:43,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-24 01:21:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:43,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:43,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:21:43,248 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:43,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:43,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533961437] [2024-11-24 01:21:43,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:43,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94976929] [2024-11-24 01:21:43,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94976929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:43,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:43,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:43,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678676263] [2024-11-24 01:21:43,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:43,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:43,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:43,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:43,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:43,250 INFO L87 Difference]: Start difference. First operand 308 states and 415 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:43,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:43,560 INFO L93 Difference]: Finished difference Result 344 states and 427 transitions. [2024-11-24 01:21:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:43,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2024-11-24 01:21:43,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:43,563 INFO L225 Difference]: With dead ends: 344 [2024-11-24 01:21:43,564 INFO L226 Difference]: Without dead ends: 329 [2024-11-24 01:21:43,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:43,566 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 134 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:43,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 287 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:21:43,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-24 01:21:43,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 296. [2024-11-24 01:21:43,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6729857819905214) internal successors, (353), 270 states have internal predecessors, (353), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 399 transitions. [2024-11-24 01:21:43,589 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 399 transitions. Word has length 54 [2024-11-24 01:21:43,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:43,589 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 399 transitions. [2024-11-24 01:21:43,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:21:43,589 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 399 transitions. [2024-11-24 01:21:43,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 01:21:43,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:43,591 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:43,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-24 01:21:43,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 01:21:43,792 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:43,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:43,793 INFO L85 PathProgramCache]: Analyzing trace with hash 299559188, now seen corresponding path program 1 times [2024-11-24 01:21:43,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:43,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095476033] [2024-11-24 01:21:43,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:43,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:43,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894979272] [2024-11-24 01:21:43,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:43,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:43,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:43,820 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:43,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-24 01:21:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:43,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:43,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:44,046 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-24 01:21:44,046 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:44,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:44,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095476033] [2024-11-24 01:21:44,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:44,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894979272] [2024-11-24 01:21:44,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894979272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:44,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:44,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:44,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802795377] [2024-11-24 01:21:44,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:44,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:44,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:44,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:44,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:44,049 INFO L87 Difference]: Start difference. First operand 296 states and 399 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-24 01:21:44,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:44,468 INFO L93 Difference]: Finished difference Result 320 states and 420 transitions. [2024-11-24 01:21:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:44,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-11-24 01:21:44,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:44,470 INFO L225 Difference]: With dead ends: 320 [2024-11-24 01:21:44,471 INFO L226 Difference]: Without dead ends: 319 [2024-11-24 01:21:44,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:44,472 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 157 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:44,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 173 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:21:44,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-24 01:21:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 296. [2024-11-24 01:21:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6682464454976302) internal successors, (352), 270 states have internal predecessors, (352), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:44,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 398 transitions. [2024-11-24 01:21:44,491 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 398 transitions. Word has length 62 [2024-11-24 01:21:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:44,491 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 398 transitions. [2024-11-24 01:21:44,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-24 01:21:44,491 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 398 transitions. [2024-11-24 01:21:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 01:21:44,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:44,493 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:44,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:44,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 01:21:44,697 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:44,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:44,698 INFO L85 PathProgramCache]: Analyzing trace with hash 696400335, now seen corresponding path program 1 times [2024-11-24 01:21:44,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:44,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678453512] [2024-11-24 01:21:44,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:44,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:44,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942017012] [2024-11-24 01:21:44,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:44,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:44,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:44,721 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:44,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-24 01:21:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:44,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:44,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-24 01:21:44,902 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:44,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:44,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678453512] [2024-11-24 01:21:44,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:44,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942017012] [2024-11-24 01:21:44,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942017012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:44,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:44,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:44,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747324222] [2024-11-24 01:21:44,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:44,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:44,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:44,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:44,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:44,903 INFO L87 Difference]: Start difference. First operand 296 states and 398 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-24 01:21:45,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:45,150 INFO L93 Difference]: Finished difference Result 320 states and 419 transitions. [2024-11-24 01:21:45,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:45,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-11-24 01:21:45,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:45,153 INFO L225 Difference]: With dead ends: 320 [2024-11-24 01:21:45,153 INFO L226 Difference]: Without dead ends: 319 [2024-11-24 01:21:45,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:45,154 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 156 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:45,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 173 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:21:45,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-24 01:21:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 296. [2024-11-24 01:21:45,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6635071090047393) internal successors, (351), 270 states have internal predecessors, (351), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:45,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 397 transitions. [2024-11-24 01:21:45,175 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 397 transitions. Word has length 63 [2024-11-24 01:21:45,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:45,176 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 397 transitions. [2024-11-24 01:21:45,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-24 01:21:45,176 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 397 transitions. [2024-11-24 01:21:45,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-24 01:21:45,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:45,177 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:45,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-24 01:21:45,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 01:21:45,378 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:45,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:45,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1272186614, now seen corresponding path program 1 times [2024-11-24 01:21:45,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:45,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990865063] [2024-11-24 01:21:45,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:45,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:45,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579483325] [2024-11-24 01:21:45,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:45,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:45,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:45,407 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:45,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-24 01:21:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:45,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:21:45,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:45,645 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-24 01:21:45,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:45,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:45,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990865063] [2024-11-24 01:21:45,646 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:45,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579483325] [2024-11-24 01:21:45,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579483325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:45,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:45,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:45,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243127937] [2024-11-24 01:21:45,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:45,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:45,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:45,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:45,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:45,648 INFO L87 Difference]: Start difference. First operand 296 states and 397 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:21:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:45,827 INFO L93 Difference]: Finished difference Result 322 states and 418 transitions. [2024-11-24 01:21:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:45,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-11-24 01:21:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:45,830 INFO L225 Difference]: With dead ends: 322 [2024-11-24 01:21:45,830 INFO L226 Difference]: Without dead ends: 321 [2024-11-24 01:21:45,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:45,830 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 88 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:45,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 224 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:21:45,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-24 01:21:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 296. [2024-11-24 01:21:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6540284360189574) internal successors, (349), 270 states have internal predecessors, (349), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 395 transitions. [2024-11-24 01:21:45,853 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 395 transitions. Word has length 73 [2024-11-24 01:21:45,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:45,854 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 395 transitions. [2024-11-24 01:21:45,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:21:45,854 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 395 transitions. [2024-11-24 01:21:45,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-24 01:21:45,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:45,856 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:45,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-24 01:21:46,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:46,057 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:46,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:46,057 INFO L85 PathProgramCache]: Analyzing trace with hash -783079258, now seen corresponding path program 1 times [2024-11-24 01:21:46,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:46,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410719312] [2024-11-24 01:21:46,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:46,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:46,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985232670] [2024-11-24 01:21:46,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:46,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:46,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:46,102 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:46,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-24 01:21:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:46,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:21:46,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:48,757 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-24 01:21:48,758 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:48,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:48,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410719312] [2024-11-24 01:21:48,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:48,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985232670] [2024-11-24 01:21:48,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985232670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:48,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:48,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:48,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655539691] [2024-11-24 01:21:48,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:48,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:48,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:48,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:48,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-24 01:21:48,760 INFO L87 Difference]: Start difference. First operand 296 states and 395 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:21:50,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:21:52,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:21:54,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:21:54,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:54,867 INFO L93 Difference]: Finished difference Result 322 states and 416 transitions. [2024-11-24 01:21:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:54,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-11-24 01:21:54,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:54,869 INFO L225 Difference]: With dead ends: 322 [2024-11-24 01:21:54,870 INFO L226 Difference]: Without dead ends: 321 [2024-11-24 01:21:54,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-24 01:21:54,870 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 43 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:54,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 321 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 3 Unknown, 0 Unchecked, 6.1s Time] [2024-11-24 01:21:54,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-24 01:21:54,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 296. [2024-11-24 01:21:54,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6445497630331753) internal successors, (347), 270 states have internal predecessors, (347), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:54,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 393 transitions. [2024-11-24 01:21:54,893 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 393 transitions. Word has length 74 [2024-11-24 01:21:54,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:54,893 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 393 transitions. [2024-11-24 01:21:54,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:21:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 393 transitions. [2024-11-24 01:21:54,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-24 01:21:54,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:54,895 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:54,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:55,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:55,096 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:55,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:55,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1494346892, now seen corresponding path program 1 times [2024-11-24 01:21:55,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:55,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306647923] [2024-11-24 01:21:55,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:55,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:55,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792820099] [2024-11-24 01:21:55,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:55,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:55,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:55,117 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:55,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-24 01:21:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:55,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:55,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:55,237 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-24 01:21:55,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:55,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:55,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306647923] [2024-11-24 01:21:55,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:55,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792820099] [2024-11-24 01:21:55,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792820099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:55,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:55,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:55,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565917350] [2024-11-24 01:21:55,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:55,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:55,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:55,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:55,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:55,239 INFO L87 Difference]: Start difference. First operand 296 states and 393 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:21:55,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:55,568 INFO L93 Difference]: Finished difference Result 315 states and 404 transitions. [2024-11-24 01:21:55,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:55,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2024-11-24 01:21:55,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:55,571 INFO L225 Difference]: With dead ends: 315 [2024-11-24 01:21:55,571 INFO L226 Difference]: Without dead ends: 313 [2024-11-24 01:21:55,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:55,572 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 90 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:55,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 256 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:21:55,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-24 01:21:55,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-24 01:21:55,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6255924170616114) internal successors, (343), 270 states have internal predecessors, (343), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:55,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 389 transitions. [2024-11-24 01:21:55,595 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 389 transitions. Word has length 75 [2024-11-24 01:21:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:55,595 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 389 transitions. [2024-11-24 01:21:55,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:21:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 389 transitions. [2024-11-24 01:21:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 01:21:55,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:55,597 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:55,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:55,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-24 01:21:55,798 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:55,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:55,798 INFO L85 PathProgramCache]: Analyzing trace with hash -919886488, now seen corresponding path program 1 times [2024-11-24 01:21:55,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:55,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338189168] [2024-11-24 01:21:55,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:55,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:55,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1932488823] [2024-11-24 01:21:55,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:55,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:55,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:55,831 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:55,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-24 01:21:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:55,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:55,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-24 01:21:56,022 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:56,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:56,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338189168] [2024-11-24 01:21:56,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:56,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932488823] [2024-11-24 01:21:56,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932488823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:56,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:56,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:56,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370257430] [2024-11-24 01:21:56,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:56,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:56,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:56,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:56,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:56,025 INFO L87 Difference]: Start difference. First operand 296 states and 389 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:21:57,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:57,069 INFO L93 Difference]: Finished difference Result 315 states and 400 transitions. [2024-11-24 01:21:57,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:57,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-11-24 01:21:57,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:57,075 INFO L225 Difference]: With dead ends: 315 [2024-11-24 01:21:57,075 INFO L226 Difference]: Without dead ends: 313 [2024-11-24 01:21:57,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:57,079 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 54 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:57,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 323 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:21:57,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-24 01:21:57,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-24 01:21:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 270 states have internal predecessors, (339), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:57,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 385 transitions. [2024-11-24 01:21:57,104 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 385 transitions. Word has length 76 [2024-11-24 01:21:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:57,105 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 385 transitions. [2024-11-24 01:21:57,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:21:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 385 transitions. [2024-11-24 01:21:57,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 01:21:57,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:57,106 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:57,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-24 01:21:57,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-24 01:21:57,310 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:57,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:57,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2122139886, now seen corresponding path program 1 times [2024-11-24 01:21:57,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:57,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455404791] [2024-11-24 01:21:57,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:57,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:57,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097182195] [2024-11-24 01:21:57,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:57,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:57,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:57,332 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:57,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-24 01:21:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:57,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:21:57,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:57,625 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-24 01:21:57,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:21:57,917 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-24 01:21:57,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:57,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455404791] [2024-11-24 01:21:57,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:21:57,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097182195] [2024-11-24 01:21:57,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097182195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:21:57,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:21:57,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-24 01:21:57,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684913308] [2024-11-24 01:21:57,919 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:21:57,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:21:57,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:57,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:21:57,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:21:57,920 INFO L87 Difference]: Start difference. First operand 296 states and 385 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 01:21:58,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:58,973 INFO L93 Difference]: Finished difference Result 314 states and 386 transitions. [2024-11-24 01:21:58,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:21:58,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 81 [2024-11-24 01:21:58,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:58,976 INFO L225 Difference]: With dead ends: 314 [2024-11-24 01:21:58,976 INFO L226 Difference]: Without dead ends: 313 [2024-11-24 01:21:58,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:21:58,977 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 295 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:58,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 353 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:21:58,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-24 01:21:59,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-24 01:21:59,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5924170616113744) internal successors, (336), 270 states have internal predecessors, (336), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:21:59,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 382 transitions. [2024-11-24 01:21:59,026 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 382 transitions. Word has length 81 [2024-11-24 01:21:59,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:59,027 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 382 transitions. [2024-11-24 01:21:59,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 01:21:59,027 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 382 transitions. [2024-11-24 01:21:59,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-24 01:21:59,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:59,028 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:59,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:59,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-24 01:21:59,229 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:21:59,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:59,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1361826898, now seen corresponding path program 1 times [2024-11-24 01:21:59,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:59,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077012121] [2024-11-24 01:21:59,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:59,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:21:59,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170749328] [2024-11-24 01:21:59,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:59,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:59,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:59,258 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:59,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-24 01:21:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:59,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 01:21:59,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:59,697 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 01:21:59,697 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 01:22:00,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:00,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077012121] [2024-11-24 01:22:00,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:00,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170749328] [2024-11-24 01:22:00,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170749328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:22:00,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:22:00,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-24 01:22:00,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862912021] [2024-11-24 01:22:00,528 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:00,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:22:00,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:00,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:22:00,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:22:00,529 INFO L87 Difference]: Start difference. First operand 296 states and 382 transitions. Second operand has 11 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-24 01:22:01,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:01,893 INFO L93 Difference]: Finished difference Result 314 states and 383 transitions. [2024-11-24 01:22:01,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:22:01,894 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 82 [2024-11-24 01:22:01,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:01,895 INFO L225 Difference]: With dead ends: 314 [2024-11-24 01:22:01,895 INFO L226 Difference]: Without dead ends: 313 [2024-11-24 01:22:01,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:22:01,896 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 308 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:01,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 492 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:22:01,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-24 01:22:01,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-24 01:22:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5781990521327014) internal successors, (333), 270 states have internal predecessors, (333), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 379 transitions. [2024-11-24 01:22:01,923 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 379 transitions. Word has length 82 [2024-11-24 01:22:01,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:01,925 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 379 transitions. [2024-11-24 01:22:01,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-24 01:22:01,926 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 379 transitions. [2024-11-24 01:22:01,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-24 01:22:01,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:01,927 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:01,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:02,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:02,127 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:02,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash 733039252, now seen corresponding path program 1 times [2024-11-24 01:22:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:02,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48763931] [2024-11-24 01:22:02,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:02,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:02,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034047687] [2024-11-24 01:22:02,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:02,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:02,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:02,156 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:02,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-24 01:22:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:02,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:22:02,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:02,744 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-24 01:22:02,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:07,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:07,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48763931] [2024-11-24 01:22:07,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:07,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034047687] [2024-11-24 01:22:07,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034047687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:07,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:07,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 01:22:07,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11307539] [2024-11-24 01:22:07,134 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:07,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:22:07,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:07,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:22:07,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-11-24 01:22:07,136 INFO L87 Difference]: Start difference. First operand 296 states and 379 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:22:07,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:07,957 INFO L93 Difference]: Finished difference Result 314 states and 390 transitions. [2024-11-24 01:22:07,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:22:07,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2024-11-24 01:22:07,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:07,959 INFO L225 Difference]: With dead ends: 314 [2024-11-24 01:22:07,960 INFO L226 Difference]: Without dead ends: 311 [2024-11-24 01:22:07,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-11-24 01:22:07,961 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 164 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:07,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 313 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:22:07,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-24 01:22:07,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 296. [2024-11-24 01:22:07,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5497630331753554) internal successors, (327), 270 states have internal predecessors, (327), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 373 transitions. [2024-11-24 01:22:07,986 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 373 transitions. Word has length 83 [2024-11-24 01:22:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:07,986 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 373 transitions. [2024-11-24 01:22:07,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:22:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 373 transitions. [2024-11-24 01:22:07,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:22:07,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:07,988 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:08,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:08,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-24 01:22:08,192 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:08,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:08,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1249380464, now seen corresponding path program 1 times [2024-11-24 01:22:08,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:08,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112919351] [2024-11-24 01:22:08,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:08,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:08,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303966491] [2024-11-24 01:22:08,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:08,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:08,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:08,218 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:08,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-24 01:22:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:08,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:22:08,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:09,059 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 01:22:09,059 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:09,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:09,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112919351] [2024-11-24 01:22:09,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:09,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303966491] [2024-11-24 01:22:09,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303966491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:09,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:09,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 01:22:09,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674075889] [2024-11-24 01:22:09,209 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:09,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:22:09,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:09,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:22:09,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:22:09,211 INFO L87 Difference]: Start difference. First operand 296 states and 373 transitions. Second operand has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 01:22:09,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:09,987 INFO L93 Difference]: Finished difference Result 304 states and 376 transitions. [2024-11-24 01:22:09,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:22:09,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 84 [2024-11-24 01:22:09,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:09,988 INFO L225 Difference]: With dead ends: 304 [2024-11-24 01:22:09,988 INFO L226 Difference]: Without dead ends: 301 [2024-11-24 01:22:09,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:09,989 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 241 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:09,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 238 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:22:09,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-24 01:22:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 296. [2024-11-24 01:22:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5213270142180095) internal successors, (321), 270 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 367 transitions. [2024-11-24 01:22:10,015 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 367 transitions. Word has length 84 [2024-11-24 01:22:10,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:10,015 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 367 transitions. [2024-11-24 01:22:10,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-24 01:22:10,016 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 367 transitions. [2024-11-24 01:22:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 01:22:10,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:10,017 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:10,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:10,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 01:22:10,218 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:10,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:10,218 INFO L85 PathProgramCache]: Analyzing trace with hash -601143357, now seen corresponding path program 1 times [2024-11-24 01:22:10,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:10,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341041475] [2024-11-24 01:22:10,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:10,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:10,307 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:10,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:10,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341041475] [2024-11-24 01:22:10,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341041475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:10,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:10,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:22:10,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522293231] [2024-11-24 01:22:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:10,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:22:10,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:10,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:22:10,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:22:10,311 INFO L87 Difference]: Start difference. First operand 296 states and 367 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-24 01:22:10,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:10,424 INFO L93 Difference]: Finished difference Result 296 states and 367 transitions. [2024-11-24 01:22:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:22:10,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 97 [2024-11-24 01:22:10,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:10,426 INFO L225 Difference]: With dead ends: 296 [2024-11-24 01:22:10,426 INFO L226 Difference]: Without dead ends: 295 [2024-11-24 01:22:10,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:22:10,427 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 1 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:10,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 281 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:22:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-24 01:22:10,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2024-11-24 01:22:10,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 211 states have (on average 1.5023696682464456) internal successors, (317), 269 states have internal predecessors, (317), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:10,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 363 transitions. [2024-11-24 01:22:10,449 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 363 transitions. Word has length 97 [2024-11-24 01:22:10,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:10,450 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 363 transitions. [2024-11-24 01:22:10,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-24 01:22:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 363 transitions. [2024-11-24 01:22:10,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 01:22:10,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:10,451 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:10,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 01:22:10,451 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:10,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:10,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1455574729, now seen corresponding path program 1 times [2024-11-24 01:22:10,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:10,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637994198] [2024-11-24 01:22:10,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:10,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:10,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:10,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637994198] [2024-11-24 01:22:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637994198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:10,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:10,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:22:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900291426] [2024-11-24 01:22:10,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:10,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:22:10,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:10,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:22:10,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:22:10,608 INFO L87 Difference]: Start difference. First operand 295 states and 363 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 01:22:11,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:11,548 INFO L93 Difference]: Finished difference Result 299 states and 364 transitions. [2024-11-24 01:22:11,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:22:11,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 98 [2024-11-24 01:22:11,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:11,551 INFO L225 Difference]: With dead ends: 299 [2024-11-24 01:22:11,551 INFO L226 Difference]: Without dead ends: 298 [2024-11-24 01:22:11,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:11,552 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 451 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:11,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 218 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:22:11,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-24 01:22:11,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2024-11-24 01:22:11,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 211 states have (on average 1.4976303317535544) internal successors, (316), 269 states have internal predecessors, (316), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 362 transitions. [2024-11-24 01:22:11,575 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 362 transitions. Word has length 98 [2024-11-24 01:22:11,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:11,576 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 362 transitions. [2024-11-24 01:22:11,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 01:22:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 362 transitions. [2024-11-24 01:22:11,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-24 01:22:11,576 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:11,577 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:11,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 01:22:11,577 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:11,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:11,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1350489719, now seen corresponding path program 1 times [2024-11-24 01:22:11,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:11,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530538598] [2024-11-24 01:22:11,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:11,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:11,756 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:11,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:11,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530538598] [2024-11-24 01:22:11,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530538598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:11,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:11,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:22:11,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152311491] [2024-11-24 01:22:11,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:11,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:22:11,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:11,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:22:11,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:22:11,760 INFO L87 Difference]: Start difference. First operand 295 states and 362 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:22:11,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:11,900 INFO L93 Difference]: Finished difference Result 310 states and 373 transitions. [2024-11-24 01:22:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:22:11,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2024-11-24 01:22:11,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:11,902 INFO L225 Difference]: With dead ends: 310 [2024-11-24 01:22:11,902 INFO L226 Difference]: Without dead ends: 309 [2024-11-24 01:22:11,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:22:11,903 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 14 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:11,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 428 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:22:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-24 01:22:11,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 300. [2024-11-24 01:22:11,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 274 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:11,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 367 transitions. [2024-11-24 01:22:11,930 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 367 transitions. Word has length 100 [2024-11-24 01:22:11,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:11,930 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 367 transitions. [2024-11-24 01:22:11,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:22:11,931 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 367 transitions. [2024-11-24 01:22:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 01:22:11,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:11,932 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:11,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 01:22:11,932 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:11,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:11,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1084491501, now seen corresponding path program 1 times [2024-11-24 01:22:11,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:11,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122239622] [2024-11-24 01:22:11,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:11,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:11,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359322011] [2024-11-24 01:22:11,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:11,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:11,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:11,964 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:11,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-24 01:22:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:12,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:22:12,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:12,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:22:12,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:12,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122239622] [2024-11-24 01:22:12,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:12,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359322011] [2024-11-24 01:22:12,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359322011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:12,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:12,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:22:12,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012844795] [2024-11-24 01:22:12,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:12,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:22:12,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:12,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:22:12,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:22:12,295 INFO L87 Difference]: Start difference. First operand 300 states and 367 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:22:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:12,727 INFO L93 Difference]: Finished difference Result 310 states and 371 transitions. [2024-11-24 01:22:12,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:22:12,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-24 01:22:12,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:12,730 INFO L225 Difference]: With dead ends: 310 [2024-11-24 01:22:12,730 INFO L226 Difference]: Without dead ends: 309 [2024-11-24 01:22:12,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:22:12,731 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 15 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:12,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 307 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:22:12,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-24 01:22:12,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 302. [2024-11-24 01:22:12,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 218 states have (on average 1.481651376146789) internal successors, (323), 276 states have internal predecessors, (323), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:12,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 369 transitions. [2024-11-24 01:22:12,755 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 369 transitions. Word has length 101 [2024-11-24 01:22:12,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:12,755 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 369 transitions. [2024-11-24 01:22:12,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:22:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 369 transitions. [2024-11-24 01:22:12,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 01:22:12,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:12,757 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:12,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-24 01:22:12,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:12,962 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:12,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:12,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1036776338, now seen corresponding path program 1 times [2024-11-24 01:22:12,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:12,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46174352] [2024-11-24 01:22:12,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:12,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:12,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111642916] [2024-11-24 01:22:12,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:12,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:12,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:12,991 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:12,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-24 01:22:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:13,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:22:13,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:13,346 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 01:22:13,346 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:13,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:13,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46174352] [2024-11-24 01:22:13,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:13,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111642916] [2024-11-24 01:22:13,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111642916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:13,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:13,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 01:22:13,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575993094] [2024-11-24 01:22:13,440 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:13,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:22:13,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:13,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:22:13,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:13,441 INFO L87 Difference]: Start difference. First operand 302 states and 369 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:22:13,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:13,988 INFO L93 Difference]: Finished difference Result 305 states and 369 transitions. [2024-11-24 01:22:13,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:22:13,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2024-11-24 01:22:13,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:13,991 INFO L225 Difference]: With dead ends: 305 [2024-11-24 01:22:13,991 INFO L226 Difference]: Without dead ends: 303 [2024-11-24 01:22:13,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:22:13,992 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 193 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:13,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 472 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:22:13,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-24 01:22:14,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 302. [2024-11-24 01:22:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 218 states have (on average 1.4724770642201834) internal successors, (321), 276 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 01:22:14,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 367 transitions. [2024-11-24 01:22:14,015 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 367 transitions. Word has length 101 [2024-11-24 01:22:14,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:14,015 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 367 transitions. [2024-11-24 01:22:14,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:22:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 367 transitions. [2024-11-24 01:22:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 01:22:14,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:14,016 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:14,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-24 01:22:14,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:14,217 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:14,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:14,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2075295333, now seen corresponding path program 1 times [2024-11-24 01:22:14,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:14,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653287031] [2024-11-24 01:22:14,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:14,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [121707491] [2024-11-24 01:22:14,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:14,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:14,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:14,242 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:14,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-24 01:22:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:14,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 01:22:14,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-24 01:22:14,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:14,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:14,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653287031] [2024-11-24 01:22:14,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:14,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121707491] [2024-11-24 01:22:14,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121707491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:14,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:14,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-24 01:22:14,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304277848] [2024-11-24 01:22:14,934 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:14,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:22:14,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:14,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:22:14,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:22:14,935 INFO L87 Difference]: Start difference. First operand 302 states and 367 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 01:22:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:15,508 INFO L93 Difference]: Finished difference Result 351 states and 423 transitions. [2024-11-24 01:22:15,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:22:15,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2024-11-24 01:22:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:15,510 INFO L225 Difference]: With dead ends: 351 [2024-11-24 01:22:15,510 INFO L226 Difference]: Without dead ends: 349 [2024-11-24 01:22:15,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:22:15,511 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 445 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:15,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 355 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:22:15,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-24 01:22:15,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 347. [2024-11-24 01:22:15,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.4131274131274132) internal successors, (366), 317 states have internal predecessors, (366), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 01:22:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 420 transitions. [2024-11-24 01:22:15,543 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 420 transitions. Word has length 102 [2024-11-24 01:22:15,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:15,544 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 420 transitions. [2024-11-24 01:22:15,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 01:22:15,544 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 420 transitions. [2024-11-24 01:22:15,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 01:22:15,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:15,545 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:15,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:15,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-24 01:22:15,750 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:15,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:15,750 INFO L85 PathProgramCache]: Analyzing trace with hash 90354192, now seen corresponding path program 1 times [2024-11-24 01:22:15,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:15,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402127623] [2024-11-24 01:22:15,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:15,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:15,849 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:15,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:15,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402127623] [2024-11-24 01:22:15,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402127623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:15,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:15,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:22:15,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405391332] [2024-11-24 01:22:15,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:15,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:22:15,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:15,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:22:15,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:22:15,851 INFO L87 Difference]: Start difference. First operand 347 states and 420 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-24 01:22:16,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:16,338 INFO L93 Difference]: Finished difference Result 378 states and 420 transitions. [2024-11-24 01:22:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:22:16,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 103 [2024-11-24 01:22:16,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:16,340 INFO L225 Difference]: With dead ends: 378 [2024-11-24 01:22:16,340 INFO L226 Difference]: Without dead ends: 377 [2024-11-24 01:22:16,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:22:16,340 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 133 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:16,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 546 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:22:16,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-24 01:22:16,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 347. [2024-11-24 01:22:16,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.4015444015444016) internal successors, (363), 317 states have internal predecessors, (363), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 01:22:16,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 417 transitions. [2024-11-24 01:22:16,371 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 417 transitions. Word has length 103 [2024-11-24 01:22:16,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:16,371 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 417 transitions. [2024-11-24 01:22:16,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-24 01:22:16,372 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 417 transitions. [2024-11-24 01:22:16,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 01:22:16,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:16,373 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:16,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 01:22:16,373 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:16,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:16,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1342134917, now seen corresponding path program 1 times [2024-11-24 01:22:16,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:16,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627025042] [2024-11-24 01:22:16,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:16,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:16,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:16,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627025042] [2024-11-24 01:22:16,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627025042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:16,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:16,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:22:16,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692458865] [2024-11-24 01:22:16,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:16,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:22:16,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:16,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:22:16,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:22:16,577 INFO L87 Difference]: Start difference. First operand 347 states and 417 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:22:16,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:16,757 INFO L93 Difference]: Finished difference Result 360 states and 427 transitions. [2024-11-24 01:22:16,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:22:16,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2024-11-24 01:22:16,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:16,759 INFO L225 Difference]: With dead ends: 360 [2024-11-24 01:22:16,759 INFO L226 Difference]: Without dead ends: 359 [2024-11-24 01:22:16,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:22:16,761 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 13 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:16,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 434 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:22:16,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-24 01:22:16,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 352. [2024-11-24 01:22:16,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 264 states have (on average 1.4015151515151516) internal successors, (370), 322 states have internal predecessors, (370), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 01:22:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 424 transitions. [2024-11-24 01:22:16,791 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 424 transitions. Word has length 104 [2024-11-24 01:22:16,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:16,792 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 424 transitions. [2024-11-24 01:22:16,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:22:16,793 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 424 transitions. [2024-11-24 01:22:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 01:22:16,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:16,794 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:16,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 01:22:16,794 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:16,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:16,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1493987267, now seen corresponding path program 1 times [2024-11-24 01:22:16,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:16,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880222247] [2024-11-24 01:22:16,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:16,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:16,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772430904] [2024-11-24 01:22:16,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:16,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:16,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:16,823 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:16,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-24 01:22:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:16,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:22:16,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 01:22:17,374 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-24 01:22:17,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:17,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880222247] [2024-11-24 01:22:17,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:17,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772430904] [2024-11-24 01:22:17,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772430904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:22:17,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:22:17,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-11-24 01:22:17,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25867132] [2024-11-24 01:22:17,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:17,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:22:17,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:17,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:22:17,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:22:17,688 INFO L87 Difference]: Start difference. First operand 352 states and 424 transitions. Second operand has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 01:22:19,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:19,082 INFO L93 Difference]: Finished difference Result 357 states and 425 transitions. [2024-11-24 01:22:19,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:22:19,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) Word has length 104 [2024-11-24 01:22:19,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:19,084 INFO L225 Difference]: With dead ends: 357 [2024-11-24 01:22:19,084 INFO L226 Difference]: Without dead ends: 356 [2024-11-24 01:22:19,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:22:19,085 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 374 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:19,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 583 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:22:19,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-24 01:22:19,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 352. [2024-11-24 01:22:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 264 states have (on average 1.3901515151515151) internal successors, (367), 322 states have internal predecessors, (367), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 01:22:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 421 transitions. [2024-11-24 01:22:19,126 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 421 transitions. Word has length 104 [2024-11-24 01:22:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:19,127 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 421 transitions. [2024-11-24 01:22:19,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 01:22:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 421 transitions. [2024-11-24 01:22:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 01:22:19,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:19,128 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:19,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-24 01:22:19,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-24 01:22:19,332 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:19,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:19,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1343490711, now seen corresponding path program 1 times [2024-11-24 01:22:19,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:19,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265618314] [2024-11-24 01:22:19,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:19,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:19,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [917315157] [2024-11-24 01:22:19,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:19,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:19,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:19,362 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:19,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-24 01:22:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:19,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:22:19,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:19,682 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:22:19,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:19,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265618314] [2024-11-24 01:22:19,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:19,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917315157] [2024-11-24 01:22:19,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917315157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:19,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:19,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:22:19,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125469783] [2024-11-24 01:22:19,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:19,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:22:19,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:19,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:22:19,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:22:19,684 INFO L87 Difference]: Start difference. First operand 352 states and 421 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:22:20,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:20,010 INFO L93 Difference]: Finished difference Result 358 states and 424 transitions. [2024-11-24 01:22:20,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:22:20,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2024-11-24 01:22:20,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:20,012 INFO L225 Difference]: With dead ends: 358 [2024-11-24 01:22:20,012 INFO L226 Difference]: Without dead ends: 357 [2024-11-24 01:22:20,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:22:20,012 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 54 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:20,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 503 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:22:20,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-24 01:22:20,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 354. [2024-11-24 01:22:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 266 states have (on average 1.387218045112782) internal successors, (369), 324 states have internal predecessors, (369), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 01:22:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 423 transitions. [2024-11-24 01:22:20,048 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 423 transitions. Word has length 105 [2024-11-24 01:22:20,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:20,048 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 423 transitions. [2024-11-24 01:22:20,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:22:20,048 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 423 transitions. [2024-11-24 01:22:20,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 01:22:20,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:20,050 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:20,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-24 01:22:20,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-24 01:22:20,250 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:20,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1690580813, now seen corresponding path program 1 times [2024-11-24 01:22:20,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:20,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448587197] [2024-11-24 01:22:20,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:20,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 01:22:20,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:20,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448587197] [2024-11-24 01:22:20,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448587197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:20,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439491674] [2024-11-24 01:22:20,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:20,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:20,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:20,531 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:20,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-24 01:22:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:20,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:22:20,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 01:22:21,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:21,617 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 01:22:21,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439491674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:22:21,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:22:21,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-11-24 01:22:21,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230451253] [2024-11-24 01:22:21,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:21,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:22:21,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:21,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:22:21,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:22:21,620 INFO L87 Difference]: Start difference. First operand 354 states and 423 transitions. Second operand has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-24 01:22:23,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:23,119 INFO L93 Difference]: Finished difference Result 740 states and 851 transitions. [2024-11-24 01:22:23,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:22:23,120 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 107 [2024-11-24 01:22:23,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:23,124 INFO L225 Difference]: With dead ends: 740 [2024-11-24 01:22:23,124 INFO L226 Difference]: Without dead ends: 711 [2024-11-24 01:22:23,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:22:23,125 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1155 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:23,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 846 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:22:23,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-24 01:22:23,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 505. [2024-11-24 01:22:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 405 states have (on average 1.5506172839506174) internal successors, (628), 463 states have internal predecessors, (628), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 01:22:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 706 transitions. [2024-11-24 01:22:23,173 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 706 transitions. Word has length 107 [2024-11-24 01:22:23,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:23,174 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 706 transitions. [2024-11-24 01:22:23,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-24 01:22:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 706 transitions. [2024-11-24 01:22:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 01:22:23,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:23,175 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:23,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-24 01:22:23,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-24 01:22:23,375 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:23,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:23,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1150569117, now seen corresponding path program 1 times [2024-11-24 01:22:23,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:23,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48325501] [2024-11-24 01:22:23,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:23,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-24 01:22:23,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:23,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48325501] [2024-11-24 01:22:23,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48325501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:23,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649063980] [2024-11-24 01:22:23,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:23,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:23,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:23,725 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:23,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-24 01:22:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:23,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:22:23,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:24,094 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:24,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:22:24,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649063980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:24,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:24,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-11-24 01:22:24,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294221349] [2024-11-24 01:22:24,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:24,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:22:24,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:24,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:22:24,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:22:24,098 INFO L87 Difference]: Start difference. First operand 505 states and 706 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:22:25,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:25,779 INFO L93 Difference]: Finished difference Result 957 states and 1277 transitions. [2024-11-24 01:22:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:22:25,779 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 109 [2024-11-24 01:22:25,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:25,783 INFO L225 Difference]: With dead ends: 957 [2024-11-24 01:22:25,783 INFO L226 Difference]: Without dead ends: 956 [2024-11-24 01:22:25,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:22:25,785 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 722 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:25,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 851 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:22:25,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-24 01:22:25,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 698. [2024-11-24 01:22:25,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 582 states have (on average 1.6443298969072164) internal successors, (957), 640 states have internal predecessors, (957), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-24 01:22:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1067 transitions. [2024-11-24 01:22:25,834 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1067 transitions. Word has length 109 [2024-11-24 01:22:25,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:25,834 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1067 transitions. [2024-11-24 01:22:25,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:22:25,834 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1067 transitions. [2024-11-24 01:22:25,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 01:22:25,835 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:25,836 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:25,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:26,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-24 01:22:26,036 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:26,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1307904182, now seen corresponding path program 1 times [2024-11-24 01:22:26,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:26,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207887745] [2024-11-24 01:22:26,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:26,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:26,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492370452] [2024-11-24 01:22:26,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:26,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:26,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:26,069 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:26,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-24 01:22:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:26,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:22:26,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:26,322 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:26,322 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 01:22:26,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:26,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207887745] [2024-11-24 01:22:26,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:26,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492370452] [2024-11-24 01:22:26,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492370452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:22:26,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:22:26,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-24 01:22:26,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142626016] [2024-11-24 01:22:26,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:26,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:22:26,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:26,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:22:26,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:26,526 INFO L87 Difference]: Start difference. First operand 698 states and 1067 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 01:22:27,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:27,656 INFO L93 Difference]: Finished difference Result 1099 states and 1647 transitions. [2024-11-24 01:22:27,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:22:27,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 110 [2024-11-24 01:22:27,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:27,661 INFO L225 Difference]: With dead ends: 1099 [2024-11-24 01:22:27,662 INFO L226 Difference]: Without dead ends: 1098 [2024-11-24 01:22:27,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:22:27,663 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 758 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:27,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 658 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:22:27,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-24 01:22:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 851. [2024-11-24 01:22:27,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 723 states have (on average 1.6721991701244814) internal successors, (1209), 781 states have internal predecessors, (1209), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:22:27,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1343 transitions. [2024-11-24 01:22:27,736 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1343 transitions. Word has length 110 [2024-11-24 01:22:27,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:27,736 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1343 transitions. [2024-11-24 01:22:27,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-24 01:22:27,737 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1343 transitions. [2024-11-24 01:22:27,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 01:22:27,737 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:27,738 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:27,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:27,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-24 01:22:27,938 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:27,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:27,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1658250161, now seen corresponding path program 1 times [2024-11-24 01:22:27,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:27,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931481402] [2024-11-24 01:22:27,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:27,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:27,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423222970] [2024-11-24 01:22:27,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:27,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:27,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:27,963 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:27,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-24 01:22:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:28,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 01:22:28,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-24 01:22:28,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:29,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:29,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931481402] [2024-11-24 01:22:29,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:29,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423222970] [2024-11-24 01:22:29,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423222970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:29,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:29,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 01:22:29,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665975390] [2024-11-24 01:22:29,172 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:29,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:22:29,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:29,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:22:29,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:22:29,173 INFO L87 Difference]: Start difference. First operand 851 states and 1343 transitions. Second operand has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-24 01:22:30,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:30,568 INFO L93 Difference]: Finished difference Result 937 states and 1449 transitions. [2024-11-24 01:22:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:22:30,569 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 116 [2024-11-24 01:22:30,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:30,573 INFO L225 Difference]: With dead ends: 937 [2024-11-24 01:22:30,573 INFO L226 Difference]: Without dead ends: 934 [2024-11-24 01:22:30,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:22:30,575 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 604 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:30,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 405 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:22:30,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-24 01:22:30,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 900. [2024-11-24 01:22:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 768 states have (on average 1.67578125) internal successors, (1287), 826 states have internal predecessors, (1287), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-24 01:22:30,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1429 transitions. [2024-11-24 01:22:30,651 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1429 transitions. Word has length 116 [2024-11-24 01:22:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:30,652 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1429 transitions. [2024-11-24 01:22:30,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-24 01:22:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1429 transitions. [2024-11-24 01:22:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 01:22:30,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:30,654 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:30,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-24 01:22:30,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-24 01:22:30,858 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:30,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:30,859 INFO L85 PathProgramCache]: Analyzing trace with hash 133852643, now seen corresponding path program 1 times [2024-11-24 01:22:30,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:30,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952548211] [2024-11-24 01:22:30,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:30,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:30,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198755836] [2024-11-24 01:22:30,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:30,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:30,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:30,889 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:30,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-24 01:22:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:30,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 01:22:30,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-24 01:22:31,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:32,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:32,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952548211] [2024-11-24 01:22:32,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:32,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198755836] [2024-11-24 01:22:32,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198755836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:32,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:32,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 01:22:32,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145184982] [2024-11-24 01:22:32,411 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:32,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:22:32,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:32,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:22:32,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:22:32,412 INFO L87 Difference]: Start difference. First operand 900 states and 1429 transitions. Second operand has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-24 01:22:33,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:33,678 INFO L93 Difference]: Finished difference Result 935 states and 1445 transitions. [2024-11-24 01:22:33,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:22:33,679 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 117 [2024-11-24 01:22:33,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:33,683 INFO L225 Difference]: With dead ends: 935 [2024-11-24 01:22:33,684 INFO L226 Difference]: Without dead ends: 934 [2024-11-24 01:22:33,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:22:33,685 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 613 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:33,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 365 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:22:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-24 01:22:33,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 900. [2024-11-24 01:22:33,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 768 states have (on average 1.6731770833333333) internal successors, (1285), 826 states have internal predecessors, (1285), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-24 01:22:33,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1427 transitions. [2024-11-24 01:22:33,762 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1427 transitions. Word has length 117 [2024-11-24 01:22:33,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:33,762 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1427 transitions. [2024-11-24 01:22:33,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-24 01:22:33,763 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1427 transitions. [2024-11-24 01:22:33,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 01:22:33,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:33,764 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:33,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:33,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-24 01:22:33,968 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:33,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:33,969 INFO L85 PathProgramCache]: Analyzing trace with hash -145535279, now seen corresponding path program 1 times [2024-11-24 01:22:33,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:33,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546024450] [2024-11-24 01:22:33,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:33,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:33,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482776543] [2024-11-24 01:22:33,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:33,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:33,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:33,993 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:33,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-24 01:22:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:34,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 01:22:34,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:34,587 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-24 01:22:34,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:34,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:34,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546024450] [2024-11-24 01:22:34,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:34,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482776543] [2024-11-24 01:22:34,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482776543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:34,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:34,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 01:22:34,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23918208] [2024-11-24 01:22:34,693 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:34,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:22:34,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:34,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:22:34,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:34,694 INFO L87 Difference]: Start difference. First operand 900 states and 1427 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-24 01:22:35,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:35,284 INFO L93 Difference]: Finished difference Result 1041 states and 1629 transitions. [2024-11-24 01:22:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:22:35,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 118 [2024-11-24 01:22:35,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:35,287 INFO L225 Difference]: With dead ends: 1041 [2024-11-24 01:22:35,288 INFO L226 Difference]: Without dead ends: 1039 [2024-11-24 01:22:35,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:22:35,288 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 225 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:35,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 462 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:22:35,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-24 01:22:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1000. [2024-11-24 01:22:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 859 states have (on average 1.6891734575087312) internal successors, (1451), 917 states have internal predecessors, (1451), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-24 01:22:35,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1611 transitions. [2024-11-24 01:22:35,352 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1611 transitions. Word has length 118 [2024-11-24 01:22:35,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:35,352 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1611 transitions. [2024-11-24 01:22:35,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-24 01:22:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1611 transitions. [2024-11-24 01:22:35,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 01:22:35,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:35,353 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:35,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:35,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-24 01:22:35,554 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:35,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:35,554 INFO L85 PathProgramCache]: Analyzing trace with hash -216626267, now seen corresponding path program 1 times [2024-11-24 01:22:35,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:35,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351122760] [2024-11-24 01:22:35,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:35,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:35,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724093574] [2024-11-24 01:22:35,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:35,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:35,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:35,576 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:35,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-24 01:22:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:35,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 01:22:35,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:36,047 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-24 01:22:36,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:36,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:36,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351122760] [2024-11-24 01:22:36,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:36,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724093574] [2024-11-24 01:22:36,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724093574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:36,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:36,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 01:22:36,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168792425] [2024-11-24 01:22:36,295 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:36,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:22:36,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:36,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:22:36,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:36,296 INFO L87 Difference]: Start difference. First operand 1000 states and 1611 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-24 01:22:36,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:36,756 INFO L93 Difference]: Finished difference Result 1041 states and 1624 transitions. [2024-11-24 01:22:36,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:22:36,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 119 [2024-11-24 01:22:36,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:36,759 INFO L225 Difference]: With dead ends: 1041 [2024-11-24 01:22:36,759 INFO L226 Difference]: Without dead ends: 1039 [2024-11-24 01:22:36,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:22:36,760 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 261 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:36,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 547 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:22:36,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-24 01:22:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1001. [2024-11-24 01:22:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 860 states have (on average 1.6837209302325582) internal successors, (1448), 918 states have internal predecessors, (1448), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-24 01:22:36,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1608 transitions. [2024-11-24 01:22:36,826 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1608 transitions. Word has length 119 [2024-11-24 01:22:36,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:36,826 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1608 transitions. [2024-11-24 01:22:36,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-24 01:22:36,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1608 transitions. [2024-11-24 01:22:36,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 01:22:36,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:36,827 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:36,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-24 01:22:37,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-24 01:22:37,028 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:37,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:37,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1874520403, now seen corresponding path program 1 times [2024-11-24 01:22:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:37,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609182960] [2024-11-24 01:22:37,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:37,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:37,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434193808] [2024-11-24 01:22:37,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:37,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:37,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:37,060 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:37,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-24 01:22:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:37,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 01:22:37,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:37,641 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-24 01:22:37,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:37,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:37,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609182960] [2024-11-24 01:22:37,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:37,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434193808] [2024-11-24 01:22:37,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434193808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:37,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:37,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-24 01:22:37,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897837185] [2024-11-24 01:22:37,727 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:37,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:22:37,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:37,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:22:37,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:22:37,728 INFO L87 Difference]: Start difference. First operand 1001 states and 1608 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-24 01:22:38,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:38,641 INFO L93 Difference]: Finished difference Result 1042 states and 1619 transitions. [2024-11-24 01:22:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:22:38,641 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2024-11-24 01:22:38,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:38,644 INFO L225 Difference]: With dead ends: 1042 [2024-11-24 01:22:38,644 INFO L226 Difference]: Without dead ends: 1039 [2024-11-24 01:22:38,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:22:38,645 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 260 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:38,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 407 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:22:38,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-24 01:22:38,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1004. [2024-11-24 01:22:38,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 863 states have (on average 1.6778679026651218) internal successors, (1448), 921 states have internal predecessors, (1448), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-24 01:22:38,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1608 transitions. [2024-11-24 01:22:38,721 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1608 transitions. Word has length 120 [2024-11-24 01:22:38,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:38,722 INFO L471 AbstractCegarLoop]: Abstraction has 1004 states and 1608 transitions. [2024-11-24 01:22:38,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-24 01:22:38,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1608 transitions. [2024-11-24 01:22:38,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 01:22:38,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:38,723 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:38,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:38,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-24 01:22:38,927 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:38,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:38,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2019409561, now seen corresponding path program 1 times [2024-11-24 01:22:38,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:38,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618271290] [2024-11-24 01:22:38,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:38,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:38,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430599522] [2024-11-24 01:22:38,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:38,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:38,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:38,948 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:38,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-24 01:22:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:39,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 01:22:39,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-24 01:22:39,551 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:39,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:39,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618271290] [2024-11-24 01:22:39,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:39,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430599522] [2024-11-24 01:22:39,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430599522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:39,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:39,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 01:22:39,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687348734] [2024-11-24 01:22:39,617 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:39,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:22:39,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:39,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:22:39,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:22:39,618 INFO L87 Difference]: Start difference. First operand 1004 states and 1608 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-24 01:22:40,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:40,340 INFO L93 Difference]: Finished difference Result 1041 states and 1613 transitions. [2024-11-24 01:22:40,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:22:40,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 121 [2024-11-24 01:22:40,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:40,343 INFO L225 Difference]: With dead ends: 1041 [2024-11-24 01:22:40,343 INFO L226 Difference]: Without dead ends: 1028 [2024-11-24 01:22:40,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:22:40,345 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 182 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:40,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 486 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:22:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-24 01:22:40,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-24 01:22:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.67016317016317) internal successors, (1433), 916 states have internal predecessors, (1433), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:22:40,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1591 transitions. [2024-11-24 01:22:40,406 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1591 transitions. Word has length 121 [2024-11-24 01:22:40,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:40,406 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1591 transitions. [2024-11-24 01:22:40,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-24 01:22:40,406 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1591 transitions. [2024-11-24 01:22:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 01:22:40,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:40,407 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:40,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-24 01:22:40,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-24 01:22:40,607 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:40,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash 874466869, now seen corresponding path program 1 times [2024-11-24 01:22:40,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:40,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048500542] [2024-11-24 01:22:40,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:40,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:40,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570597715] [2024-11-24 01:22:40,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:40,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:40,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:40,626 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:40,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-24 01:22:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:40,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 01:22:40,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 6 proven. 32 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 01:22:41,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:41,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:41,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048500542] [2024-11-24 01:22:41,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:41,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570597715] [2024-11-24 01:22:41,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570597715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:41,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:41,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-24 01:22:41,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060183822] [2024-11-24 01:22:41,663 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:41,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:22:41,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:41,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:22:41,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:22:41,664 INFO L87 Difference]: Start difference. First operand 998 states and 1591 transitions. Second operand has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:22:42,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:42,911 INFO L93 Difference]: Finished difference Result 1022 states and 1607 transitions. [2024-11-24 01:22:42,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:22:42,912 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 127 [2024-11-24 01:22:42,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:42,914 INFO L225 Difference]: With dead ends: 1022 [2024-11-24 01:22:42,915 INFO L226 Difference]: Without dead ends: 1020 [2024-11-24 01:22:42,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:22:42,915 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 640 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:42,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 445 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:22:42,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-24 01:22:42,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 998. [2024-11-24 01:22:42,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6655011655011656) internal successors, (1429), 916 states have internal predecessors, (1429), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:22:42,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1587 transitions. [2024-11-24 01:22:42,979 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1587 transitions. Word has length 127 [2024-11-24 01:22:42,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:42,979 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1587 transitions. [2024-11-24 01:22:42,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:22:42,979 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1587 transitions. [2024-11-24 01:22:42,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 01:22:42,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:42,980 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:42,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:43,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-24 01:22:43,180 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:43,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1338669258, now seen corresponding path program 1 times [2024-11-24 01:22:43,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:43,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974075382] [2024-11-24 01:22:43,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:43,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:43,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529891543] [2024-11-24 01:22:43,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:43,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:43,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:43,203 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:43,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-24 01:22:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:43,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 01:22:43,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 01:22:43,973 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:52,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:52,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974075382] [2024-11-24 01:22:52,483 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:52,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529891543] [2024-11-24 01:22:52,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529891543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:52,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:52,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-24 01:22:52,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327771022] [2024-11-24 01:22:52,484 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:52,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:22:52,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:52,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:22:52,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=168, Unknown=2, NotChecked=0, Total=210 [2024-11-24 01:22:52,485 INFO L87 Difference]: Start difference. First operand 998 states and 1587 transitions. Second operand has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:22:53,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:53,553 INFO L93 Difference]: Finished difference Result 1022 states and 1603 transitions. [2024-11-24 01:22:53,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:22:53,554 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 128 [2024-11-24 01:22:53,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:53,559 INFO L225 Difference]: With dead ends: 1022 [2024-11-24 01:22:53,559 INFO L226 Difference]: Without dead ends: 1020 [2024-11-24 01:22:53,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=87, Invalid=291, Unknown=2, NotChecked=0, Total=380 [2024-11-24 01:22:53,560 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 399 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:53,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 466 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:22:53,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-24 01:22:53,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 998. [2024-11-24 01:22:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6608391608391608) internal successors, (1425), 916 states have internal predecessors, (1425), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:22:53,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1583 transitions. [2024-11-24 01:22:53,628 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1583 transitions. Word has length 128 [2024-11-24 01:22:53,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:53,628 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1583 transitions. [2024-11-24 01:22:53,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:22:53,628 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1583 transitions. [2024-11-24 01:22:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-24 01:22:53,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:53,629 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:53,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:53,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-24 01:22:53,835 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:22:53,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1450925865, now seen corresponding path program 1 times [2024-11-24 01:22:53,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:53,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381761160] [2024-11-24 01:22:53,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:53,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:22:53,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529612252] [2024-11-24 01:22:53,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:53,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:53,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:53,858 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:53,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-24 01:22:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:53,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 01:22:53,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:54,894 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 01:22:54,895 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:59,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:59,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381761160] [2024-11-24 01:22:59,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:22:59,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529612252] [2024-11-24 01:22:59,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529612252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:59,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:59,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-24 01:22:59,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368509802] [2024-11-24 01:22:59,233 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:59,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:22:59,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:59,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:22:59,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=281, Unknown=1, NotChecked=0, Total=342 [2024-11-24 01:22:59,234 INFO L87 Difference]: Start difference. First operand 998 states and 1583 transitions. Second operand has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:23:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:00,685 INFO L93 Difference]: Finished difference Result 1030 states and 1613 transitions. [2024-11-24 01:23:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:23:00,686 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 129 [2024-11-24 01:23:00,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:00,690 INFO L225 Difference]: With dead ends: 1030 [2024-11-24 01:23:00,690 INFO L226 Difference]: Without dead ends: 1028 [2024-11-24 01:23:00,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2024-11-24 01:23:00,692 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 452 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:00,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 312 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:23:00,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-24 01:23:00,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-24 01:23:00,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.656177156177156) internal successors, (1421), 916 states have internal predecessors, (1421), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:00,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1579 transitions. [2024-11-24 01:23:00,756 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1579 transitions. Word has length 129 [2024-11-24 01:23:00,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:00,757 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1579 transitions. [2024-11-24 01:23:00,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:23:00,757 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1579 transitions. [2024-11-24 01:23:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-24 01:23:00,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:00,758 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:00,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-24 01:23:00,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-24 01:23:00,962 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:00,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:00,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2029028756, now seen corresponding path program 1 times [2024-11-24 01:23:00,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:00,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219154432] [2024-11-24 01:23:00,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:00,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:00,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157539338] [2024-11-24 01:23:00,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:00,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:00,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:00,984 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:00,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-24 01:23:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:01,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 01:23:01,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:02,110 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 01:23:02,111 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:02,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219154432] [2024-11-24 01:23:02,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157539338] [2024-11-24 01:23:02,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157539338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:02,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:02,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-24 01:23:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457513001] [2024-11-24 01:23:02,810 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:02,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:23:02,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:02,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:23:02,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:23:02,811 INFO L87 Difference]: Start difference. First operand 998 states and 1579 transitions. Second operand has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:23:04,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:04,348 INFO L93 Difference]: Finished difference Result 1030 states and 1609 transitions. [2024-11-24 01:23:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:23:04,349 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 130 [2024-11-24 01:23:04,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:04,359 INFO L225 Difference]: With dead ends: 1030 [2024-11-24 01:23:04,359 INFO L226 Difference]: Without dead ends: 1028 [2024-11-24 01:23:04,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:23:04,365 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 589 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:04,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 303 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:23:04,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-24 01:23:04,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-24 01:23:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6515151515151516) internal successors, (1417), 916 states have internal predecessors, (1417), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1575 transitions. [2024-11-24 01:23:04,431 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1575 transitions. Word has length 130 [2024-11-24 01:23:04,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:04,431 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1575 transitions. [2024-11-24 01:23:04,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:23:04,432 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1575 transitions. [2024-11-24 01:23:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-24 01:23:04,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:04,432 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:04,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-24 01:23:04,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-24 01:23:04,633 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:04,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:04,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1524618105, now seen corresponding path program 1 times [2024-11-24 01:23:04,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:04,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318611417] [2024-11-24 01:23:04,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:04,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:04,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305543128] [2024-11-24 01:23:04,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:04,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:04,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:04,666 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:04,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-24 01:23:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:04,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:23:04,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:06,124 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 01:23:06,125 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:06,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:06,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318611417] [2024-11-24 01:23:06,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:06,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305543128] [2024-11-24 01:23:06,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305543128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:06,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:06,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:23:06,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098140667] [2024-11-24 01:23:06,225 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:06,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:23:06,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:06,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:23:06,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:23:06,226 INFO L87 Difference]: Start difference. First operand 998 states and 1575 transitions. Second operand has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:23:07,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:07,891 INFO L93 Difference]: Finished difference Result 1029 states and 1605 transitions. [2024-11-24 01:23:07,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:23:07,892 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 131 [2024-11-24 01:23:07,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:07,895 INFO L225 Difference]: With dead ends: 1029 [2024-11-24 01:23:07,895 INFO L226 Difference]: Without dead ends: 1028 [2024-11-24 01:23:07,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:23:07,896 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 571 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:07,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 217 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:23:07,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-24 01:23:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-24 01:23:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6491841491841492) internal successors, (1415), 916 states have internal predecessors, (1415), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:07,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1573 transitions. [2024-11-24 01:23:07,969 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1573 transitions. Word has length 131 [2024-11-24 01:23:07,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:07,969 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1573 transitions. [2024-11-24 01:23:07,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-24 01:23:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1573 transitions. [2024-11-24 01:23:07,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-24 01:23:07,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:07,971 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:07,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-24 01:23:08,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-24 01:23:08,172 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:08,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:08,172 INFO L85 PathProgramCache]: Analyzing trace with hash 18521102, now seen corresponding path program 1 times [2024-11-24 01:23:08,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:08,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278393085] [2024-11-24 01:23:08,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:08,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:08,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073547119] [2024-11-24 01:23:08,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:08,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:08,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:08,201 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:08,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-24 01:23:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:08,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 01:23:08,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:09,714 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-24 01:23:09,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:10,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:10,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278393085] [2024-11-24 01:23:10,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:10,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073547119] [2024-11-24 01:23:10,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073547119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:10,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:10,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-24 01:23:10,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281407815] [2024-11-24 01:23:10,325 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:10,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:23:10,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:10,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:23:10,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:23:10,326 INFO L87 Difference]: Start difference. First operand 998 states and 1573 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-24 01:23:11,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:11,719 INFO L93 Difference]: Finished difference Result 1017 states and 1589 transitions. [2024-11-24 01:23:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:23:11,719 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 132 [2024-11-24 01:23:11,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:11,723 INFO L225 Difference]: With dead ends: 1017 [2024-11-24 01:23:11,723 INFO L226 Difference]: Without dead ends: 1014 [2024-11-24 01:23:11,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:23:11,724 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 234 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:11,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 391 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:23:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-24 01:23:11,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-24 01:23:11,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6421911421911422) internal successors, (1409), 916 states have internal predecessors, (1409), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1567 transitions. [2024-11-24 01:23:11,813 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1567 transitions. Word has length 132 [2024-11-24 01:23:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:11,813 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1567 transitions. [2024-11-24 01:23:11,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-24 01:23:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1567 transitions. [2024-11-24 01:23:11,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-24 01:23:11,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:11,815 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:11,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-24 01:23:12,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-24 01:23:12,016 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:12,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash 705069349, now seen corresponding path program 1 times [2024-11-24 01:23:12,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:12,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826284596] [2024-11-24 01:23:12,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:12,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:12,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504637013] [2024-11-24 01:23:12,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:12,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:12,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:12,037 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:12,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-24 01:23:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:12,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 01:23:12,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-24 01:23:13,571 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:17,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:17,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826284596] [2024-11-24 01:23:17,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:17,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504637013] [2024-11-24 01:23:17,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504637013] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:17,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:17,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 01:23:17,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119470984] [2024-11-24 01:23:17,896 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:17,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:23:17,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:17,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:23:17,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=218, Unknown=1, NotChecked=0, Total=272 [2024-11-24 01:23:17,897 INFO L87 Difference]: Start difference. First operand 998 states and 1567 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:23:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:20,105 INFO L93 Difference]: Finished difference Result 1015 states and 1583 transitions. [2024-11-24 01:23:20,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:23:20,105 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 138 [2024-11-24 01:23:20,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:20,108 INFO L225 Difference]: With dead ends: 1015 [2024-11-24 01:23:20,108 INFO L226 Difference]: Without dead ends: 1014 [2024-11-24 01:23:20,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=104, Invalid=401, Unknown=1, NotChecked=0, Total=506 [2024-11-24 01:23:20,109 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 391 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:20,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 643 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:23:20,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-24 01:23:20,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-24 01:23:20,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6398601398601398) internal successors, (1407), 916 states have internal predecessors, (1407), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1565 transitions. [2024-11-24 01:23:20,156 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1565 transitions. Word has length 138 [2024-11-24 01:23:20,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:20,157 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1565 transitions. [2024-11-24 01:23:20,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:23:20,157 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1565 transitions. [2024-11-24 01:23:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 01:23:20,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:20,158 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:20,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-24 01:23:20,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:20,358 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:20,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:20,358 INFO L85 PathProgramCache]: Analyzing trace with hash 382313447, now seen corresponding path program 1 times [2024-11-24 01:23:20,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:20,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126187865] [2024-11-24 01:23:20,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:20,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:20,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753985060] [2024-11-24 01:23:20,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:20,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:20,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:20,380 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:20,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-24 01:23:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:20,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 01:23:20,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 18 proven. 46 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-24 01:23:22,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:22,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:22,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126187865] [2024-11-24 01:23:22,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:22,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753985060] [2024-11-24 01:23:22,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753985060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:22,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:22,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-24 01:23:22,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884883145] [2024-11-24 01:23:22,623 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:22,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:23:22,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:22,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:23:22,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:23:22,624 INFO L87 Difference]: Start difference. First operand 998 states and 1565 transitions. Second operand has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-24 01:23:24,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:24,728 INFO L93 Difference]: Finished difference Result 1017 states and 1583 transitions. [2024-11-24 01:23:24,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:23:24,728 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 139 [2024-11-24 01:23:24,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:24,732 INFO L225 Difference]: With dead ends: 1017 [2024-11-24 01:23:24,732 INFO L226 Difference]: Without dead ends: 1016 [2024-11-24 01:23:24,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:23:24,733 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 451 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:24,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 461 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:23:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-24 01:23:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 998. [2024-11-24 01:23:24,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6375291375291374) internal successors, (1405), 916 states have internal predecessors, (1405), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1563 transitions. [2024-11-24 01:23:24,821 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1563 transitions. Word has length 139 [2024-11-24 01:23:24,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:24,821 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1563 transitions. [2024-11-24 01:23:24,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-24 01:23:24,822 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1563 transitions. [2024-11-24 01:23:24,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-24 01:23:24,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:24,823 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:24,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-24 01:23:25,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:25,024 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:25,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash -753260119, now seen corresponding path program 1 times [2024-11-24 01:23:25,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:25,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288019152] [2024-11-24 01:23:25,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:25,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:25,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292850772] [2024-11-24 01:23:25,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:25,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:25,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:25,052 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:25,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-24 01:23:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:25,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 01:23:25,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-24 01:23:27,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:27,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:27,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288019152] [2024-11-24 01:23:27,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:27,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292850772] [2024-11-24 01:23:27,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292850772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:27,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:27,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-24 01:23:27,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048320283] [2024-11-24 01:23:27,284 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:27,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:23:27,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:27,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:23:27,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:23:27,286 INFO L87 Difference]: Start difference. First operand 998 states and 1563 transitions. Second operand has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:23:32,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:23:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:34,881 INFO L93 Difference]: Finished difference Result 1015 states and 1579 transitions. [2024-11-24 01:23:34,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:23:34,881 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 142 [2024-11-24 01:23:34,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:34,884 INFO L225 Difference]: With dead ends: 1015 [2024-11-24 01:23:34,884 INFO L226 Difference]: Without dead ends: 1014 [2024-11-24 01:23:34,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:23:34,885 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 504 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:34,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 461 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1556 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2024-11-24 01:23:34,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-24 01:23:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-24 01:23:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6351981351981353) internal successors, (1403), 916 states have internal predecessors, (1403), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1561 transitions. [2024-11-24 01:23:34,957 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1561 transitions. Word has length 142 [2024-11-24 01:23:34,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:34,957 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1561 transitions. [2024-11-24 01:23:34,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:23:34,958 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1561 transitions. [2024-11-24 01:23:34,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 01:23:34,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:34,959 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:34,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-11-24 01:23:35,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:35,159 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:35,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:35,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1876227093, now seen corresponding path program 1 times [2024-11-24 01:23:35,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:35,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343803215] [2024-11-24 01:23:35,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:35,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:35,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757217302] [2024-11-24 01:23:35,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:35,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:35,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:35,192 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:35,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-24 01:23:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:35,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 01:23:35,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-24 01:23:36,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:36,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:36,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343803215] [2024-11-24 01:23:36,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:36,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757217302] [2024-11-24 01:23:36,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757217302] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:36,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:36,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-24 01:23:36,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188273614] [2024-11-24 01:23:36,297 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:36,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:23:36,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:36,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:23:36,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:36,298 INFO L87 Difference]: Start difference. First operand 998 states and 1561 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:23:37,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:37,340 INFO L93 Difference]: Finished difference Result 1017 states and 1577 transitions. [2024-11-24 01:23:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:23:37,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 143 [2024-11-24 01:23:37,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:37,343 INFO L225 Difference]: With dead ends: 1017 [2024-11-24 01:23:37,343 INFO L226 Difference]: Without dead ends: 1016 [2024-11-24 01:23:37,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:37,344 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 84 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:37,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 723 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:23:37,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-24 01:23:37,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 998. [2024-11-24 01:23:37,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.632867132867133) internal successors, (1401), 916 states have internal predecessors, (1401), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1559 transitions. [2024-11-24 01:23:37,419 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1559 transitions. Word has length 143 [2024-11-24 01:23:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:37,420 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1559 transitions. [2024-11-24 01:23:37,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:23:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1559 transitions. [2024-11-24 01:23:37,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 01:23:37,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:37,421 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:37,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-24 01:23:37,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:37,624 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:37,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:37,625 INFO L85 PathProgramCache]: Analyzing trace with hash 23179821, now seen corresponding path program 1 times [2024-11-24 01:23:37,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:37,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613791309] [2024-11-24 01:23:37,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:37,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:37,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040242151] [2024-11-24 01:23:37,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:37,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:37,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:37,665 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:37,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-24 01:23:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:37,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-24 01:23:37,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 6 proven. 47 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-24 01:23:40,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:40,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:40,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613791309] [2024-11-24 01:23:40,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:40,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040242151] [2024-11-24 01:23:40,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040242151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:40,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:40,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:23:40,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618044176] [2024-11-24 01:23:40,639 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:40,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:23:40,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:40,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:23:40,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:23:40,640 INFO L87 Difference]: Start difference. First operand 998 states and 1559 transitions. Second operand has 14 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-24 01:23:43,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:43,406 INFO L93 Difference]: Finished difference Result 1018 states and 1575 transitions. [2024-11-24 01:23:43,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:23:43,407 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 146 [2024-11-24 01:23:43,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:43,409 INFO L225 Difference]: With dead ends: 1018 [2024-11-24 01:23:43,410 INFO L226 Difference]: Without dead ends: 1014 [2024-11-24 01:23:43,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:23:43,411 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 409 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:43,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 387 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 01:23:43,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-24 01:23:43,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-24 01:23:43,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6235431235431235) internal successors, (1393), 916 states have internal predecessors, (1393), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1551 transitions. [2024-11-24 01:23:43,486 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1551 transitions. Word has length 146 [2024-11-24 01:23:43,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:43,487 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1551 transitions. [2024-11-24 01:23:43,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-24 01:23:43,487 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1551 transitions. [2024-11-24 01:23:43,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 01:23:43,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:43,488 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:43,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-11-24 01:23:43,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:43,692 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:43,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:43,693 INFO L85 PathProgramCache]: Analyzing trace with hash 718574575, now seen corresponding path program 1 times [2024-11-24 01:23:43,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:43,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938089796] [2024-11-24 01:23:43,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:43,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:43,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430167888] [2024-11-24 01:23:43,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:43,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:43,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:43,725 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:43,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-24 01:23:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:43,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 01:23:43,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:45,495 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 24 proven. 48 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-24 01:23:45,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:46,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:46,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938089796] [2024-11-24 01:23:46,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:46,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430167888] [2024-11-24 01:23:46,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430167888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:46,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:46,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-24 01:23:46,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083514756] [2024-11-24 01:23:46,050 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:46,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:23:46,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:46,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:23:46,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:23:46,052 INFO L87 Difference]: Start difference. First operand 998 states and 1551 transitions. Second operand has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-24 01:23:49,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:49,562 INFO L93 Difference]: Finished difference Result 1016 states and 1567 transitions. [2024-11-24 01:23:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:23:49,563 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 147 [2024-11-24 01:23:49,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:49,566 INFO L225 Difference]: With dead ends: 1016 [2024-11-24 01:23:49,566 INFO L226 Difference]: Without dead ends: 1014 [2024-11-24 01:23:49,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:23:49,567 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 388 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:49,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 385 Invalid, 2179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 01:23:49,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-24 01:23:49,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-24 01:23:49,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.618881118881119) internal successors, (1389), 916 states have internal predecessors, (1389), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:49,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1547 transitions. [2024-11-24 01:23:49,638 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1547 transitions. Word has length 147 [2024-11-24 01:23:49,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:49,638 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1547 transitions. [2024-11-24 01:23:49,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-24 01:23:49,638 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1547 transitions. [2024-11-24 01:23:49,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 01:23:49,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:49,640 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:49,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-24 01:23:49,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-24 01:23:49,844 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:49,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:49,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1203766263, now seen corresponding path program 1 times [2024-11-24 01:23:49,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:49,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131327939] [2024-11-24 01:23:49,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:49,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:49,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684663032] [2024-11-24 01:23:49,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:49,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:49,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:49,870 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:49,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-24 01:23:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:49,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 01:23:49,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:51,068 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 24 proven. 47 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-24 01:23:51,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:51,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:51,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131327939] [2024-11-24 01:23:51,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:51,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684663032] [2024-11-24 01:23:51,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684663032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:51,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:51,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-24 01:23:51,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696986584] [2024-11-24 01:23:51,607 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:51,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:23:51,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:51,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:23:51,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:23:51,608 INFO L87 Difference]: Start difference. First operand 998 states and 1547 transitions. Second operand has 13 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:23:54,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:54,095 INFO L93 Difference]: Finished difference Result 1007 states and 1551 transitions. [2024-11-24 01:23:54,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:23:54,095 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 155 [2024-11-24 01:23:54,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:54,098 INFO L225 Difference]: With dead ends: 1007 [2024-11-24 01:23:54,098 INFO L226 Difference]: Without dead ends: 1005 [2024-11-24 01:23:54,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:23:54,099 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 282 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:54,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 510 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 01:23:54,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-24 01:23:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 998. [2024-11-24 01:23:54,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6142191142191142) internal successors, (1385), 916 states have internal predecessors, (1385), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:23:54,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1543 transitions. [2024-11-24 01:23:54,191 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1543 transitions. Word has length 155 [2024-11-24 01:23:54,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:54,191 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1543 transitions. [2024-11-24 01:23:54,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-24 01:23:54,192 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1543 transitions. [2024-11-24 01:23:54,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-24 01:23:54,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:54,193 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:54,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-11-24 01:23:54,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-24 01:23:54,394 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:54,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:54,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1598756135, now seen corresponding path program 1 times [2024-11-24 01:23:54,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:54,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839176212] [2024-11-24 01:23:54,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:54,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:23:54,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:54,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839176212] [2024-11-24 01:23:54,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839176212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:54,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524748349] [2024-11-24 01:23:54,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:54,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:54,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:54,620 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:54,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-24 01:23:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:54,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:23:54,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:55,216 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:23:55,216 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:23:55,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524748349] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:23:55,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:23:55,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-24 01:23:55,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423689884] [2024-11-24 01:23:55,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:55,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:23:55,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:55,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:23:55,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:23:55,604 INFO L87 Difference]: Start difference. First operand 998 states and 1543 transitions. Second operand has 16 states, 15 states have (on average 18.0) internal successors, (270), 16 states have internal predecessors, (270), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-24 01:23:57,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:57,295 INFO L93 Difference]: Finished difference Result 1090 states and 1647 transitions. [2024-11-24 01:23:57,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:23:57,296 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.0) internal successors, (270), 16 states have internal predecessors, (270), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) Word has length 159 [2024-11-24 01:23:57,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:57,300 INFO L225 Difference]: With dead ends: 1090 [2024-11-24 01:23:57,300 INFO L226 Difference]: Without dead ends: 1089 [2024-11-24 01:23:57,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:23:57,301 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 533 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:57,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 635 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:23:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-24 01:23:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1086. [2024-11-24 01:23:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 938 states have (on average 1.5660980810234542) internal successors, (1469), 996 states have internal predecessors, (1469), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 01:23:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1643 transitions. [2024-11-24 01:23:57,397 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1643 transitions. Word has length 159 [2024-11-24 01:23:57,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:57,397 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1643 transitions. [2024-11-24 01:23:57,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.0) internal successors, (270), 16 states have internal predecessors, (270), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-24 01:23:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1643 transitions. [2024-11-24 01:23:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-24 01:23:57,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:57,399 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:57,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-24 01:23:57,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:57,599 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:57,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1812130327, now seen corresponding path program 1 times [2024-11-24 01:23:57,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:57,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023994160] [2024-11-24 01:23:57,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:57,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:23:57,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666179248] [2024-11-24 01:23:57,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:57,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:57,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:57,623 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:57,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-24 01:23:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:57,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:23:57,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:58,007 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:23:58,007 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:23:58,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:58,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023994160] [2024-11-24 01:23:58,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:58,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666179248] [2024-11-24 01:23:58,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666179248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:58,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:58,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:23:58,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968421368] [2024-11-24 01:23:58,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:58,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:58,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:58,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:58,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:58,008 INFO L87 Difference]: Start difference. First operand 1086 states and 1643 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:23:58,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:58,342 INFO L93 Difference]: Finished difference Result 1090 states and 1643 transitions. [2024-11-24 01:23:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:23:58,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 163 [2024-11-24 01:23:58,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:58,345 INFO L225 Difference]: With dead ends: 1090 [2024-11-24 01:23:58,345 INFO L226 Difference]: Without dead ends: 1089 [2024-11-24 01:23:58,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:58,345 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 30 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:58,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 277 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:23:58,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-24 01:23:58,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1086. [2024-11-24 01:23:58,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 938 states have (on average 1.5650319829424306) internal successors, (1468), 996 states have internal predecessors, (1468), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 01:23:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1642 transitions. [2024-11-24 01:23:58,417 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1642 transitions. Word has length 163 [2024-11-24 01:23:58,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:58,417 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1642 transitions. [2024-11-24 01:23:58,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:23:58,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1642 transitions. [2024-11-24 01:23:58,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-24 01:23:58,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:58,419 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:58,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-11-24 01:23:58,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-24 01:23:58,619 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:23:58,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash -332960373, now seen corresponding path program 2 times [2024-11-24 01:23:58,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:58,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613531282] [2024-11-24 01:23:58,620 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:23:58,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:58,648 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:23:58,648 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:23:58,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770787121] [2024-11-24 01:23:58,649 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:23:58,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:58,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:58,656 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:58,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-24 01:23:58,753 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:23:58,753 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:58,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:23:58,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 15 proven. 70 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-24 01:23:59,659 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:59,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:59,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613531282] [2024-11-24 01:23:59,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:23:59,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770787121] [2024-11-24 01:23:59,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770787121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:59,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:59,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 01:23:59,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168803502] [2024-11-24 01:23:59,815 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:59,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:23:59,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:59,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:23:59,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:23:59,816 INFO L87 Difference]: Start difference. First operand 1086 states and 1642 transitions. Second operand has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:00,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:00,999 INFO L93 Difference]: Finished difference Result 1091 states and 1644 transitions. [2024-11-24 01:24:01,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:24:01,000 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 163 [2024-11-24 01:24:01,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:01,002 INFO L225 Difference]: With dead ends: 1091 [2024-11-24 01:24:01,003 INFO L226 Difference]: Without dead ends: 1089 [2024-11-24 01:24:01,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:24:01,003 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 359 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:01,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 584 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:24:01,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-24 01:24:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1086. [2024-11-24 01:24:01,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 938 states have (on average 1.5628997867803838) internal successors, (1466), 996 states have internal predecessors, (1466), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 01:24:01,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1640 transitions. [2024-11-24 01:24:01,136 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1640 transitions. Word has length 163 [2024-11-24 01:24:01,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:01,136 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1640 transitions. [2024-11-24 01:24:01,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:01,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1640 transitions. [2024-11-24 01:24:01,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:24:01,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:01,138 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:01,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-24 01:24:01,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:01,342 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:01,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:01,343 INFO L85 PathProgramCache]: Analyzing trace with hash -341465115, now seen corresponding path program 1 times [2024-11-24 01:24:01,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:01,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14358915] [2024-11-24 01:24:01,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:01,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:24:01,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908775616] [2024-11-24 01:24:01,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:01,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:01,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:01,371 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:01,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-24 01:24:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:01,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:24:01,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:01,810 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:01,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:02,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:02,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14358915] [2024-11-24 01:24:02,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:24:02,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908775616] [2024-11-24 01:24:02,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908775616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:02,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:02,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-24 01:24:02,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491164852] [2024-11-24 01:24:02,246 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:02,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:24:02,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:02,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:24:02,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:24:02,247 INFO L87 Difference]: Start difference. First operand 1086 states and 1640 transitions. Second operand has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:24:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:02,646 INFO L93 Difference]: Finished difference Result 1099 states and 1651 transitions. [2024-11-24 01:24:02,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:24:02,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 164 [2024-11-24 01:24:02,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:02,649 INFO L225 Difference]: With dead ends: 1099 [2024-11-24 01:24:02,649 INFO L226 Difference]: Without dead ends: 1098 [2024-11-24 01:24:02,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:24:02,650 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 75 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:02,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 346 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:24:02,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-24 01:24:02,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1093. [2024-11-24 01:24:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 945 states have (on average 1.5587301587301587) internal successors, (1473), 1003 states have internal predecessors, (1473), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 01:24:02,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1647 transitions. [2024-11-24 01:24:02,717 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1647 transitions. Word has length 164 [2024-11-24 01:24:02,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:02,718 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1647 transitions. [2024-11-24 01:24:02,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:24:02,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1647 transitions. [2024-11-24 01:24:02,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:24:02,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:02,719 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:02,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-24 01:24:02,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:02,920 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:02,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:02,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1366164346, now seen corresponding path program 1 times [2024-11-24 01:24:02,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:02,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312225577] [2024-11-24 01:24:02,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:02,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:03,134 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:03,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:03,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312225577] [2024-11-24 01:24:03,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312225577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:03,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043246781] [2024-11-24 01:24:03,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:03,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:03,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:03,137 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:03,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-24 01:24:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:03,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:24:03,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:03,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:04,139 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:04,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043246781] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:24:04,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:24:04,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-24 01:24:04,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268884102] [2024-11-24 01:24:04,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:04,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:24:04,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:04,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:24:04,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:24:04,141 INFO L87 Difference]: Start difference. First operand 1093 states and 1647 transitions. Second operand has 19 states, 18 states have (on average 16.0) internal successors, (288), 19 states have internal predecessors, (288), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-24 01:24:07,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:07,732 INFO L93 Difference]: Finished difference Result 1744 states and 2319 transitions. [2024-11-24 01:24:07,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-24 01:24:07,732 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 16.0) internal successors, (288), 19 states have internal predecessors, (288), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) Word has length 165 [2024-11-24 01:24:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:07,736 INFO L225 Difference]: With dead ends: 1744 [2024-11-24 01:24:07,737 INFO L226 Difference]: Without dead ends: 1743 [2024-11-24 01:24:07,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1631 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1211, Invalid=3901, Unknown=0, NotChecked=0, Total=5112 [2024-11-24 01:24:07,738 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 3115 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3116 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:07,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3116 Valid, 784 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 01:24:07,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-24 01:24:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1324. [2024-11-24 01:24:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1156 states have (on average 1.5813148788927336) internal successors, (1828), 1214 states have internal predecessors, (1828), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 01:24:07,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 2042 transitions. [2024-11-24 01:24:07,911 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 2042 transitions. Word has length 165 [2024-11-24 01:24:07,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:07,911 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 2042 transitions. [2024-11-24 01:24:07,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 16.0) internal successors, (288), 19 states have internal predecessors, (288), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-24 01:24:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 2042 transitions. [2024-11-24 01:24:07,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-24 01:24:07,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:07,913 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:07,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-24 01:24:08,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2024-11-24 01:24:08,117 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:08,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:08,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1730455385, now seen corresponding path program 1 times [2024-11-24 01:24:08,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:08,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912927252] [2024-11-24 01:24:08,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:08,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:24:08,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327251784] [2024-11-24 01:24:08,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:08,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:08,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:08,144 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:08,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-24 01:24:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:08,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:24:08,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:08,857 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:08,858 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:24:08,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:08,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912927252] [2024-11-24 01:24:08,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:24:08,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327251784] [2024-11-24 01:24:08,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327251784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:08,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:08,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:24:08,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833765064] [2024-11-24 01:24:08,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:08,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:24:08,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:08,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:24:08,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:08,859 INFO L87 Difference]: Start difference. First operand 1324 states and 2042 transitions. Second operand has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:24:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:09,404 INFO L93 Difference]: Finished difference Result 1328 states and 2042 transitions. [2024-11-24 01:24:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:24:09,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 166 [2024-11-24 01:24:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:09,407 INFO L225 Difference]: With dead ends: 1328 [2024-11-24 01:24:09,407 INFO L226 Difference]: Without dead ends: 1327 [2024-11-24 01:24:09,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:09,408 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 19 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:09,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 349 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:24:09,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-24 01:24:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1324. [2024-11-24 01:24:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1156 states have (on average 1.5804498269896194) internal successors, (1827), 1214 states have internal predecessors, (1827), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 01:24:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 2041 transitions. [2024-11-24 01:24:09,510 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 2041 transitions. Word has length 166 [2024-11-24 01:24:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:09,510 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 2041 transitions. [2024-11-24 01:24:09,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-24 01:24:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 2041 transitions. [2024-11-24 01:24:09,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-24 01:24:09,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:09,512 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:09,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-24 01:24:09,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:09,713 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:09,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:09,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1377590278, now seen corresponding path program 1 times [2024-11-24 01:24:09,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:09,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900165085] [2024-11-24 01:24:09,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:09,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:09,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:09,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900165085] [2024-11-24 01:24:09,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900165085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:09,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326134390] [2024-11-24 01:24:09,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:09,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:09,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:09,915 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:09,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-24 01:24:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:10,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:24:10,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:10,166 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:10,166 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:24:10,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326134390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:10,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:10,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-24 01:24:10,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567942054] [2024-11-24 01:24:10,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:10,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:24:10,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:10,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:24:10,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:24:10,168 INFO L87 Difference]: Start difference. First operand 1324 states and 2041 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:24:10,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:10,558 INFO L93 Difference]: Finished difference Result 1677 states and 2544 transitions. [2024-11-24 01:24:10,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:24:10,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2024-11-24 01:24:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:10,560 INFO L225 Difference]: With dead ends: 1677 [2024-11-24 01:24:10,560 INFO L226 Difference]: Without dead ends: 851 [2024-11-24 01:24:10,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:24:10,563 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 166 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:10,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 576 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:24:10,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-11-24 01:24:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 826. [2024-11-24 01:24:10,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 699 states have (on average 1.4177396280400572) internal successors, (991), 756 states have internal predecessors, (991), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:24:10,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1125 transitions. [2024-11-24 01:24:10,672 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1125 transitions. Word has length 167 [2024-11-24 01:24:10,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:10,672 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1125 transitions. [2024-11-24 01:24:10,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:24:10,673 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1125 transitions. [2024-11-24 01:24:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 01:24:10,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:10,674 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:10,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:10,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-24 01:24:10,875 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:10,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:10,875 INFO L85 PathProgramCache]: Analyzing trace with hash 292089675, now seen corresponding path program 1 times [2024-11-24 01:24:10,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:10,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631123339] [2024-11-24 01:24:10,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:10,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:24:10,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304459543] [2024-11-24 01:24:10,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:10,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:10,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:10,902 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:10,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-24 01:24:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:10,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:24:10,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 52 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-24 01:24:11,309 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:11,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:11,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631123339] [2024-11-24 01:24:11,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:24:11,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304459543] [2024-11-24 01:24:11,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304459543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:11,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:11,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-24 01:24:11,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901025869] [2024-11-24 01:24:11,384 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:11,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:24:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:11,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:24:11,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:24:11,385 INFO L87 Difference]: Start difference. First operand 826 states and 1125 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-24 01:24:12,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:12,596 INFO L93 Difference]: Finished difference Result 930 states and 1150 transitions. [2024-11-24 01:24:12,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:24:12,597 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 168 [2024-11-24 01:24:12,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:12,600 INFO L225 Difference]: With dead ends: 930 [2024-11-24 01:24:12,600 INFO L226 Difference]: Without dead ends: 928 [2024-11-24 01:24:12,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:24:12,601 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 495 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:12,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 955 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:24:12,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-24 01:24:12,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 826. [2024-11-24 01:24:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 699 states have (on average 1.413447782546495) internal successors, (988), 756 states have internal predecessors, (988), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-24 01:24:12,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1122 transitions. [2024-11-24 01:24:12,736 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1122 transitions. Word has length 168 [2024-11-24 01:24:12,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:12,736 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1122 transitions. [2024-11-24 01:24:12,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-24 01:24:12,737 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1122 transitions. [2024-11-24 01:24:12,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 01:24:12,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:12,738 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:12,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:12,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-11-24 01:24:12,939 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:12,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:12,940 INFO L85 PathProgramCache]: Analyzing trace with hash -815279421, now seen corresponding path program 1 times [2024-11-24 01:24:12,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:12,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329220975] [2024-11-24 01:24:12,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:12,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:24:12,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997043362] [2024-11-24 01:24:12,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:12,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:12,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:12,979 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:12,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-24 01:24:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:13,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 01:24:13,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-24 01:24:14,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:19,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:19,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329220975] [2024-11-24 01:24:19,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:24:19,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997043362] [2024-11-24 01:24:19,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997043362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:19,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:19,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:24:19,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253746818] [2024-11-24 01:24:19,057 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:19,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:24:19,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:19,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:24:19,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=275, Unknown=1, NotChecked=0, Total=342 [2024-11-24 01:24:19,058 INFO L87 Difference]: Start difference. First operand 826 states and 1122 transitions. Second operand has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:21,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:21,263 INFO L93 Difference]: Finished difference Result 941 states and 1293 transitions. [2024-11-24 01:24:21,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:24:21,263 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 168 [2024-11-24 01:24:21,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:21,266 INFO L225 Difference]: With dead ends: 941 [2024-11-24 01:24:21,266 INFO L226 Difference]: Without dead ends: 937 [2024-11-24 01:24:21,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=146, Invalid=555, Unknown=1, NotChecked=0, Total=702 [2024-11-24 01:24:21,267 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 579 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:21,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 658 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:24:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-24 01:24:21,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 920. [2024-11-24 01:24:21,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 785 states have (on average 1.435668789808917) internal successors, (1127), 842 states have internal predecessors, (1127), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:24:21,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1277 transitions. [2024-11-24 01:24:21,402 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1277 transitions. Word has length 168 [2024-11-24 01:24:21,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:21,402 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1277 transitions. [2024-11-24 01:24:21,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:21,403 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1277 transitions. [2024-11-24 01:24:21,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:24:21,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:21,404 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:21,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:21,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-11-24 01:24:21,608 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:21,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:21,609 INFO L85 PathProgramCache]: Analyzing trace with hash 464845406, now seen corresponding path program 1 times [2024-11-24 01:24:21,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:21,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066869430] [2024-11-24 01:24:21,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:21,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:24:21,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474705252] [2024-11-24 01:24:21,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:21,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:21,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:21,634 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:21,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-24 01:24:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:21,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 01:24:21,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 6 proven. 64 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-24 01:24:22,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:22,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:22,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066869430] [2024-11-24 01:24:22,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:24:22,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474705252] [2024-11-24 01:24:22,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474705252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:22,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:22,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 01:24:22,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265538363] [2024-11-24 01:24:22,584 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:22,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:24:22,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:22,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:24:22,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:24:22,585 INFO L87 Difference]: Start difference. First operand 920 states and 1277 transitions. Second operand has 12 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:24,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:24,189 INFO L93 Difference]: Finished difference Result 927 states and 1281 transitions. [2024-11-24 01:24:24,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:24:24,190 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 169 [2024-11-24 01:24:24,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:24,192 INFO L225 Difference]: With dead ends: 927 [2024-11-24 01:24:24,192 INFO L226 Difference]: Without dead ends: 925 [2024-11-24 01:24:24,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:24:24,193 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 436 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:24,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 573 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:24:24,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-24 01:24:24,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 922. [2024-11-24 01:24:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 787 states have (on average 1.4332909783989836) internal successors, (1128), 844 states have internal predecessors, (1128), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:24:24,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1278 transitions. [2024-11-24 01:24:24,336 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1278 transitions. Word has length 169 [2024-11-24 01:24:24,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:24,336 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1278 transitions. [2024-11-24 01:24:24,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:24,337 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1278 transitions. [2024-11-24 01:24:24,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:24:24,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:24,338 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:24,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-24 01:24:24,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-11-24 01:24:24,542 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:24,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:24,543 INFO L85 PathProgramCache]: Analyzing trace with hash 496141910, now seen corresponding path program 1 times [2024-11-24 01:24:24,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:24,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612645299] [2024-11-24 01:24:24,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:24,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:24:24,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598868792] [2024-11-24 01:24:24,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:24,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:24,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:24,571 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:24,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-24 01:24:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:24,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 01:24:24,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:26,267 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-24 01:24:26,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:30,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:30,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612645299] [2024-11-24 01:24:30,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:24:30,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598868792] [2024-11-24 01:24:30,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598868792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:30,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:30,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:24:30,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26787136] [2024-11-24 01:24:30,983 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:30,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:24:30,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:30,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:24:30,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=276, Unknown=1, NotChecked=0, Total=342 [2024-11-24 01:24:30,984 INFO L87 Difference]: Start difference. First operand 922 states and 1278 transitions. Second operand has 14 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:33,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:33,162 INFO L93 Difference]: Finished difference Result 945 states and 1288 transitions. [2024-11-24 01:24:33,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:24:33,162 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 169 [2024-11-24 01:24:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:33,165 INFO L225 Difference]: With dead ends: 945 [2024-11-24 01:24:33,166 INFO L226 Difference]: Without dead ends: 942 [2024-11-24 01:24:33,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=188, Invalid=681, Unknown=1, NotChecked=0, Total=870 [2024-11-24 01:24:33,167 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 992 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:33,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 498 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:24:33,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-24 01:24:33,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 923. [2024-11-24 01:24:33,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 788 states have (on average 1.4276649746192893) internal successors, (1125), 845 states have internal predecessors, (1125), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:24:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1275 transitions. [2024-11-24 01:24:33,300 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1275 transitions. Word has length 169 [2024-11-24 01:24:33,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:33,300 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1275 transitions. [2024-11-24 01:24:33,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:33,301 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1275 transitions. [2024-11-24 01:24:33,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-24 01:24:33,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:33,302 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:33,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:33,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-24 01:24:33,507 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:33,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:33,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1799469787, now seen corresponding path program 1 times [2024-11-24 01:24:33,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:33,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116344559] [2024-11-24 01:24:33,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:33,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:24:33,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031538976] [2024-11-24 01:24:33,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:33,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:33,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:33,530 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:33,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-24 01:24:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:33,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:24:33,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-24 01:24:35,382 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:39,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:39,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116344559] [2024-11-24 01:24:39,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:24:39,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031538976] [2024-11-24 01:24:39,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031538976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:39,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:39,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:24:39,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936245992] [2024-11-24 01:24:39,627 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:39,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:24:39,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:39,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:24:39,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=234, Unknown=1, NotChecked=0, Total=306 [2024-11-24 01:24:39,628 INFO L87 Difference]: Start difference. First operand 923 states and 1275 transitions. Second operand has 14 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:41,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:41,762 INFO L93 Difference]: Finished difference Result 952 states and 1299 transitions. [2024-11-24 01:24:41,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:24:41,762 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 170 [2024-11-24 01:24:41,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:41,766 INFO L225 Difference]: With dead ends: 952 [2024-11-24 01:24:41,766 INFO L226 Difference]: Without dead ends: 949 [2024-11-24 01:24:41,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=167, Invalid=534, Unknown=1, NotChecked=0, Total=702 [2024-11-24 01:24:41,767 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 306 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:41,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 519 Invalid, 1875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:24:41,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-24 01:24:41,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 924. [2024-11-24 01:24:41,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 789 states have (on average 1.4220532319391634) internal successors, (1122), 846 states have internal predecessors, (1122), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:24:41,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1272 transitions. [2024-11-24 01:24:41,917 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1272 transitions. Word has length 170 [2024-11-24 01:24:41,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:41,917 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1272 transitions. [2024-11-24 01:24:41,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:41,917 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1272 transitions. [2024-11-24 01:24:41,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-24 01:24:41,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:41,919 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:41,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:42,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-24 01:24:42,119 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:42,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:42,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1799521421, now seen corresponding path program 1 times [2024-11-24 01:24:42,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:42,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31676176] [2024-11-24 01:24:42,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:42,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:42,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:42,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31676176] [2024-11-24 01:24:42,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31676176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:42,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727692426] [2024-11-24 01:24:42,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:42,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:42,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:42,308 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:42,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-24 01:24:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:42,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:24:42,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:42,568 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:42,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:24:42,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727692426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:42,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:42,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2024-11-24 01:24:42,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526315385] [2024-11-24 01:24:42,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:42,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:24:42,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:42,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:24:42,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:24:42,572 INFO L87 Difference]: Start difference. First operand 924 states and 1272 transitions. Second operand has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:24:43,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:43,189 INFO L93 Difference]: Finished difference Result 957 states and 1272 transitions. [2024-11-24 01:24:43,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:24:43,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 170 [2024-11-24 01:24:43,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:43,192 INFO L225 Difference]: With dead ends: 957 [2024-11-24 01:24:43,192 INFO L226 Difference]: Without dead ends: 956 [2024-11-24 01:24:43,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:24:43,193 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 294 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:43,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1143 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:24:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-24 01:24:43,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 923. [2024-11-24 01:24:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 789 states have (on average 1.4157160963244613) internal successors, (1117), 845 states have internal predecessors, (1117), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:24:43,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1267 transitions. [2024-11-24 01:24:43,328 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1267 transitions. Word has length 170 [2024-11-24 01:24:43,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:43,329 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1267 transitions. [2024-11-24 01:24:43,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:24:43,329 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1267 transitions. [2024-11-24 01:24:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-24 01:24:43,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:43,331 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:43,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-24 01:24:43,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:43,532 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:43,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:43,532 INFO L85 PathProgramCache]: Analyzing trace with hash 51011640, now seen corresponding path program 1 times [2024-11-24 01:24:43,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:43,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133183926] [2024-11-24 01:24:43,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:43,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:24:43,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569847777] [2024-11-24 01:24:43,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:43,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:43,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:43,551 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:43,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-24 01:24:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:43,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:24:43,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 47 proven. 19 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-24 01:24:45,463 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:53,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:53,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133183926] [2024-11-24 01:24:53,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:24:53,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569847777] [2024-11-24 01:24:53,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569847777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:53,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:53,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:24:53,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73940659] [2024-11-24 01:24:53,966 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:53,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:24:53,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:53,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:24:53,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=234, Unknown=2, NotChecked=0, Total=306 [2024-11-24 01:24:53,967 INFO L87 Difference]: Start difference. First operand 923 states and 1267 transitions. Second operand has 14 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:56,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:56,312 INFO L93 Difference]: Finished difference Result 953 states and 1284 transitions. [2024-11-24 01:24:56,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:24:56,313 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 171 [2024-11-24 01:24:56,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:56,315 INFO L225 Difference]: With dead ends: 953 [2024-11-24 01:24:56,315 INFO L226 Difference]: Without dead ends: 950 [2024-11-24 01:24:56,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=179, Invalid=575, Unknown=2, NotChecked=0, Total=756 [2024-11-24 01:24:56,316 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 240 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:56,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 574 Invalid, 2309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:24:56,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-24 01:24:56,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 923. [2024-11-24 01:24:56,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 789 states have (on average 1.4043092522179974) internal successors, (1108), 845 states have internal predecessors, (1108), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:24:56,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1258 transitions. [2024-11-24 01:24:56,431 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1258 transitions. Word has length 171 [2024-11-24 01:24:56,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:56,431 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1258 transitions. [2024-11-24 01:24:56,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 01:24:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1258 transitions. [2024-11-24 01:24:56,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-24 01:24:56,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:56,432 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:56,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:56,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2024-11-24 01:24:56,633 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:24:56,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:56,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1581361031, now seen corresponding path program 1 times [2024-11-24 01:24:56,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:56,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91192598] [2024-11-24 01:24:56,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:56,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:24:56,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340853650] [2024-11-24 01:24:56,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:56,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:56,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:56,660 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:56,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-24 01:24:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:56,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 01:24:56,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:24:58,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:25:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 01:25:00,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:00,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91192598] [2024-11-24 01:25:00,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:25:00,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340853650] [2024-11-24 01:25:00,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340853650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:25:00,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:25:00,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-24 01:25:00,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641986792] [2024-11-24 01:25:00,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:25:00,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:25:00,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:00,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:25:00,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:25:00,102 INFO L87 Difference]: Start difference. First operand 923 states and 1258 transitions. Second operand has 18 states, 17 states have (on average 12.176470588235293) internal successors, (207), 18 states have internal predecessors, (207), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-24 01:25:09,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:09,311 INFO L93 Difference]: Finished difference Result 949 states and 1284 transitions. [2024-11-24 01:25:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-24 01:25:09,312 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.176470588235293) internal successors, (207), 18 states have internal predecessors, (207), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 172 [2024-11-24 01:25:09,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:09,313 INFO L225 Difference]: With dead ends: 949 [2024-11-24 01:25:09,313 INFO L226 Difference]: Without dead ends: 940 [2024-11-24 01:25:09,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=351, Invalid=1209, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:25:09,314 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 931 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 2836 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:09,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 391 Invalid, 2963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2836 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-24 01:25:09,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-11-24 01:25:09,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 935. [2024-11-24 01:25:09,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 801 states have (on average 1.3982521847690388) internal successors, (1120), 857 states have internal predecessors, (1120), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-24 01:25:09,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1270 transitions. [2024-11-24 01:25:09,417 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1270 transitions. Word has length 172 [2024-11-24 01:25:09,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:09,417 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1270 transitions. [2024-11-24 01:25:09,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.176470588235293) internal successors, (207), 18 states have internal predecessors, (207), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-24 01:25:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1270 transitions. [2024-11-24 01:25:09,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-24 01:25:09,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:09,418 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:09,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-24 01:25:09,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2024-11-24 01:25:09,622 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:25:09,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:09,623 INFO L85 PathProgramCache]: Analyzing trace with hash -250434167, now seen corresponding path program 1 times [2024-11-24 01:25:09,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:09,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084326698] [2024-11-24 01:25:09,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:09,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:25:09,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862685407] [2024-11-24 01:25:09,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:09,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:09,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:09,654 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:09,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-24 01:25:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:09,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 01:25:09,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:12,243 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-24 01:25:12,243 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:25:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-24 01:25:13,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:13,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084326698] [2024-11-24 01:25:13,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:25:13,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862685407] [2024-11-24 01:25:13,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862685407] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:25:13,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:25:13,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-24 01:25:13,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609435245] [2024-11-24 01:25:13,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:25:13,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:25:13,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:13,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:25:13,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:25:13,936 INFO L87 Difference]: Start difference. First operand 935 states and 1270 transitions. Second operand has 20 states, 19 states have (on average 11.947368421052632) internal successors, (227), 20 states have internal predecessors, (227), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-24 01:25:20,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:20,160 INFO L93 Difference]: Finished difference Result 964 states and 1302 transitions. [2024-11-24 01:25:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 01:25:20,161 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 11.947368421052632) internal successors, (227), 20 states have internal predecessors, (227), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 192 [2024-11-24 01:25:20,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:20,163 INFO L225 Difference]: With dead ends: 964 [2024-11-24 01:25:20,163 INFO L226 Difference]: Without dead ends: 963 [2024-11-24 01:25:20,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=245, Invalid=1087, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 01:25:20,164 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 569 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:20,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 364 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-24 01:25:20,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-24 01:25:20,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 952. [2024-11-24 01:25:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 816 states have (on average 1.3933823529411764) internal successors, (1137), 872 states have internal predecessors, (1137), 77 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-24 01:25:20,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1291 transitions. [2024-11-24 01:25:20,269 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1291 transitions. Word has length 192 [2024-11-24 01:25:20,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:20,269 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1291 transitions. [2024-11-24 01:25:20,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 11.947368421052632) internal successors, (227), 20 states have internal predecessors, (227), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-24 01:25:20,270 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1291 transitions. [2024-11-24 01:25:20,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 01:25:20,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:20,271 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:20,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-24 01:25:20,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:20,472 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:25:20,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:20,472 INFO L85 PathProgramCache]: Analyzing trace with hash 826475518, now seen corresponding path program 1 times [2024-11-24 01:25:20,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:20,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121549999] [2024-11-24 01:25:20,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:20,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:25:20,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553510100] [2024-11-24 01:25:20,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:20,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:20,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:20,497 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:20,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-24 01:25:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:20,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-24 01:25:20,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-24 01:25:24,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:25:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-24 01:25:27,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:27,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121549999] [2024-11-24 01:25:27,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:25:27,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553510100] [2024-11-24 01:25:27,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553510100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:25:27,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:25:27,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-24 01:25:27,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406130556] [2024-11-24 01:25:27,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:25:27,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 01:25:27,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:27,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 01:25:27,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:25:27,601 INFO L87 Difference]: Start difference. First operand 952 states and 1291 transitions. Second operand has 25 states, 24 states have (on average 9.791666666666666) internal successors, (235), 25 states have internal predecessors, (235), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-24 01:25:45,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:45,475 INFO L93 Difference]: Finished difference Result 999 states and 1347 transitions. [2024-11-24 01:25:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-24 01:25:45,476 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 9.791666666666666) internal successors, (235), 25 states have internal predecessors, (235), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) Word has length 193 [2024-11-24 01:25:45,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:45,478 INFO L225 Difference]: With dead ends: 999 [2024-11-24 01:25:45,478 INFO L226 Difference]: Without dead ends: 994 [2024-11-24 01:25:45,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=559, Invalid=2093, Unknown=0, NotChecked=0, Total=2652 [2024-11-24 01:25:45,480 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 702 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 3681 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 3767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:45,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 494 Invalid, 3767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3681 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2024-11-24 01:25:45,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-24 01:25:45,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 983. [2024-11-24 01:25:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.383431952662722) internal successors, (1169), 901 states have internal predecessors, (1169), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:25:45,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1327 transitions. [2024-11-24 01:25:45,600 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1327 transitions. Word has length 193 [2024-11-24 01:25:45,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:45,600 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1327 transitions. [2024-11-24 01:25:45,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 9.791666666666666) internal successors, (235), 25 states have internal predecessors, (235), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-24 01:25:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1327 transitions. [2024-11-24 01:25:45,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 01:25:45,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:45,601 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:45,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-24 01:25:45,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:45,802 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:25:45,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:45,802 INFO L85 PathProgramCache]: Analyzing trace with hash -706923243, now seen corresponding path program 1 times [2024-11-24 01:25:45,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:45,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728621876] [2024-11-24 01:25:45,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:45,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:25:45,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [923770369] [2024-11-24 01:25:45,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:45,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:45,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:45,831 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:45,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-24 01:25:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:45,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 01:25:45,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-24 01:25:47,751 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:25:56,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:56,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728621876] [2024-11-24 01:25:56,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:25:56,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923770369] [2024-11-24 01:25:56,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923770369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:56,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:25:56,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-24 01:25:56,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365089915] [2024-11-24 01:25:56,082 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:25:56,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:25:56,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:56,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:25:56,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=140, Unknown=2, NotChecked=0, Total=182 [2024-11-24 01:25:56,083 INFO L87 Difference]: Start difference. First operand 983 states and 1327 transitions. Second operand has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-24 01:25:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:59,208 INFO L93 Difference]: Finished difference Result 1003 states and 1336 transitions. [2024-11-24 01:25:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:25:59,209 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 199 [2024-11-24 01:25:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:59,211 INFO L225 Difference]: With dead ends: 1003 [2024-11-24 01:25:59,211 INFO L226 Difference]: Without dead ends: 1002 [2024-11-24 01:25:59,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=98, Invalid=280, Unknown=2, NotChecked=0, Total=380 [2024-11-24 01:25:59,212 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 148 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:25:59,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 873 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-24 01:25:59,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-11-24 01:25:59,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 983. [2024-11-24 01:25:59,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.378698224852071) internal successors, (1165), 901 states have internal predecessors, (1165), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:25:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1323 transitions. [2024-11-24 01:25:59,342 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1323 transitions. Word has length 199 [2024-11-24 01:25:59,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:59,343 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1323 transitions. [2024-11-24 01:25:59,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-24 01:25:59,343 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1323 transitions. [2024-11-24 01:25:59,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-24 01:25:59,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:59,344 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:25:59,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2024-11-24 01:25:59,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:59,544 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:25:59,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:59,545 INFO L85 PathProgramCache]: Analyzing trace with hash -439783945, now seen corresponding path program 1 times [2024-11-24 01:25:59,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:59,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611261479] [2024-11-24 01:25:59,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:59,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:25:59,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1880183053] [2024-11-24 01:25:59,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:59,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:59,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:59,571 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:59,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-24 01:25:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:59,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 01:25:59,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-24 01:26:02,694 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:11,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:11,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611261479] [2024-11-24 01:26:11,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:26:11,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880183053] [2024-11-24 01:26:11,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880183053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:11,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:11,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:26:11,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890241890] [2024-11-24 01:26:11,269 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:11,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:26:11,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:11,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:26:11,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=246, Unknown=2, NotChecked=0, Total=306 [2024-11-24 01:26:11,270 INFO L87 Difference]: Start difference. First operand 983 states and 1323 transitions. Second operand has 14 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-24 01:26:15,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:15,761 INFO L93 Difference]: Finished difference Result 1000 states and 1334 transitions. [2024-11-24 01:26:15,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:26:15,761 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 200 [2024-11-24 01:26:15,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:15,763 INFO L225 Difference]: With dead ends: 1000 [2024-11-24 01:26:15,763 INFO L226 Difference]: Without dead ends: 999 [2024-11-24 01:26:15,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=140, Invalid=560, Unknown=2, NotChecked=0, Total=702 [2024-11-24 01:26:15,764 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 551 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:15,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 654 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 01:26:15,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-24 01:26:15,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 983. [2024-11-24 01:26:15,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3763313609467456) internal successors, (1163), 901 states have internal predecessors, (1163), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:26:15,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1321 transitions. [2024-11-24 01:26:15,885 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1321 transitions. Word has length 200 [2024-11-24 01:26:15,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:15,885 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1321 transitions. [2024-11-24 01:26:15,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-24 01:26:15,885 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1321 transitions. [2024-11-24 01:26:15,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-24 01:26:15,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:15,886 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:15,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-24 01:26:16,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:16,087 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:26:16,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:16,087 INFO L85 PathProgramCache]: Analyzing trace with hash -748400297, now seen corresponding path program 1 times [2024-11-24 01:26:16,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:16,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526040636] [2024-11-24 01:26:16,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:16,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:26:16,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724526087] [2024-11-24 01:26:16,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:16,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:16,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:16,117 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:16,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-24 01:26:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:16,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 01:26:16,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 24 proven. 107 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-24 01:26:18,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:22,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:22,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526040636] [2024-11-24 01:26:22,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:26:22,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724526087] [2024-11-24 01:26:22,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724526087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:22,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:22,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-24 01:26:22,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722647150] [2024-11-24 01:26:22,766 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:22,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:26:22,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:22,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:26:22,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:26:22,768 INFO L87 Difference]: Start difference. First operand 983 states and 1321 transitions. Second operand has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 14 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-24 01:26:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:25,912 INFO L93 Difference]: Finished difference Result 1007 states and 1340 transitions. [2024-11-24 01:26:25,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:26:25,912 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 14 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 201 [2024-11-24 01:26:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:25,914 INFO L225 Difference]: With dead ends: 1007 [2024-11-24 01:26:25,914 INFO L226 Difference]: Without dead ends: 1005 [2024-11-24 01:26:25,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:26:25,915 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 202 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:25,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 777 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 01:26:25,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-24 01:26:26,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 983. [2024-11-24 01:26:26,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3715976331360946) internal successors, (1159), 901 states have internal predecessors, (1159), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:26:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1317 transitions. [2024-11-24 01:26:26,036 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1317 transitions. Word has length 201 [2024-11-24 01:26:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:26,036 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1317 transitions. [2024-11-24 01:26:26,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 14 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-24 01:26:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1317 transitions. [2024-11-24 01:26:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-24 01:26:26,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:26,038 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:26,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2024-11-24 01:26:26,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:26,239 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:26:26,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:26,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1953143399, now seen corresponding path program 1 times [2024-11-24 01:26:26,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:26,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247180135] [2024-11-24 01:26:26,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:26,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:26:26,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305397203] [2024-11-24 01:26:26,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:26,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:26,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:26,265 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:26,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-24 01:26:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:26,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 01:26:26,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 3 proven. 102 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-24 01:26:31,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:33,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:33,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247180135] [2024-11-24 01:26:33,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:26:33,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305397203] [2024-11-24 01:26:33,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305397203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:33,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:33,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-24 01:26:33,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909915283] [2024-11-24 01:26:33,199 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:33,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:26:33,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:33,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:26:33,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:26:33,200 INFO L87 Difference]: Start difference. First operand 983 states and 1317 transitions. Second operand has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-24 01:26:40,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:26:44,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:44,155 INFO L93 Difference]: Finished difference Result 998 states and 1328 transitions. [2024-11-24 01:26:44,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:26:44,156 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 203 [2024-11-24 01:26:44,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:44,157 INFO L225 Difference]: With dead ends: 998 [2024-11-24 01:26:44,157 INFO L226 Difference]: Without dead ends: 997 [2024-11-24 01:26:44,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=219, Invalid=1263, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 01:26:44,158 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 523 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 2799 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:44,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 610 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2799 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-24 01:26:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-11-24 01:26:44,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 983. [2024-11-24 01:26:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3692307692307693) internal successors, (1157), 901 states have internal predecessors, (1157), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:26:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1315 transitions. [2024-11-24 01:26:44,324 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1315 transitions. Word has length 203 [2024-11-24 01:26:44,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:44,325 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1315 transitions. [2024-11-24 01:26:44,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-24 01:26:44,325 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1315 transitions. [2024-11-24 01:26:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 01:26:44,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:44,327 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:44,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2024-11-24 01:26:44,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:44,528 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:26:44,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash -417903109, now seen corresponding path program 1 times [2024-11-24 01:26:44,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:44,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857410813] [2024-11-24 01:26:44,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:44,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:26:44,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837274115] [2024-11-24 01:26:44,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:44,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:44,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:44,570 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:44,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-24 01:26:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:44,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-24 01:26:44,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:26:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 21 proven. 125 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-24 01:26:49,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:26:50,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:26:50,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857410813] [2024-11-24 01:26:50,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:26:50,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837274115] [2024-11-24 01:26:50,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837274115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:26:50,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:26:50,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-24 01:26:50,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637694979] [2024-11-24 01:26:50,605 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:26:50,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:26:50,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:26:50,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:26:50,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:26:50,606 INFO L87 Difference]: Start difference. First operand 983 states and 1315 transitions. Second operand has 19 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-24 01:26:54,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:26:54,953 INFO L93 Difference]: Finished difference Result 1001 states and 1328 transitions. [2024-11-24 01:26:54,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 01:26:54,954 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 204 [2024-11-24 01:26:54,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:26:54,956 INFO L225 Difference]: With dead ends: 1001 [2024-11-24 01:26:54,956 INFO L226 Difference]: Without dead ends: 999 [2024-11-24 01:26:54,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=156, Invalid=900, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:26:54,956 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 335 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 3021 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 3039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:26:54,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 489 Invalid, 3039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3021 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 01:26:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-24 01:26:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 983. [2024-11-24 01:26:55,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3644970414201183) internal successors, (1153), 901 states have internal predecessors, (1153), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:26:55,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1311 transitions. [2024-11-24 01:26:55,147 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1311 transitions. Word has length 204 [2024-11-24 01:26:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:26:55,148 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1311 transitions. [2024-11-24 01:26:55,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-24 01:26:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1311 transitions. [2024-11-24 01:26:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-24 01:26:55,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:26:55,149 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:26:55,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2024-11-24 01:26:55,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2024-11-24 01:26:55,350 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:26:55,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:26:55,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1358788125, now seen corresponding path program 1 times [2024-11-24 01:26:55,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:26:55,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629110561] [2024-11-24 01:26:55,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:55,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:26:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:26:55,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91708411] [2024-11-24 01:26:55,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:26:55,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:26:55,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:26:55,380 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:26:55,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-24 01:26:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:26:55,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-24 01:26:55,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:27:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 12 proven. 110 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-24 01:27:00,449 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:27:02,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:27:02,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629110561] [2024-11-24 01:27:02,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:27:02,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91708411] [2024-11-24 01:27:02,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91708411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:27:02,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:27:02,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-24 01:27:02,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069216316] [2024-11-24 01:27:02,724 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:27:02,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:27:02,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:27:02,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:27:02,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:27:02,725 INFO L87 Difference]: Start difference. First operand 983 states and 1311 transitions. Second operand has 16 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-24 01:27:06,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:27:06,206 INFO L93 Difference]: Finished difference Result 996 states and 1320 transitions. [2024-11-24 01:27:06,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:27:06,206 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 207 [2024-11-24 01:27:06,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:27:06,208 INFO L225 Difference]: With dead ends: 996 [2024-11-24 01:27:06,208 INFO L226 Difference]: Without dead ends: 995 [2024-11-24 01:27:06,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=197, Invalid=859, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:27:06,209 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 524 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:27:06,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 382 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2503 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 01:27:06,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-24 01:27:06,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 983. [2024-11-24 01:27:06,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.362130177514793) internal successors, (1151), 901 states have internal predecessors, (1151), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:27:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1309 transitions. [2024-11-24 01:27:06,354 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1309 transitions. Word has length 207 [2024-11-24 01:27:06,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:27:06,354 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1309 transitions. [2024-11-24 01:27:06,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-24 01:27:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1309 transitions. [2024-11-24 01:27:06,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-24 01:27:06,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:27:06,355 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:27:06,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2024-11-24 01:27:06,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:27:06,556 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:27:06,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:27:06,556 INFO L85 PathProgramCache]: Analyzing trace with hash -409609727, now seen corresponding path program 1 times [2024-11-24 01:27:06,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:27:06,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517809317] [2024-11-24 01:27:06,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:27:06,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:27:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:27:06,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1936327427] [2024-11-24 01:27:06,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:27:06,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:27:06,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:27:06,582 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:27:06,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-24 01:27:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:27:06,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 01:27:06,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:27:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 41 proven. 87 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-24 01:27:08,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:27:08,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:27:08,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517809317] [2024-11-24 01:27:08,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:27:08,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936327427] [2024-11-24 01:27:08,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936327427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:27:08,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:27:08,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 01:27:08,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66847212] [2024-11-24 01:27:08,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:27:08,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:27:08,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:27:08,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:27:08,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:27:08,668 INFO L87 Difference]: Start difference. First operand 983 states and 1309 transitions. Second operand has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-24 01:27:10,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:27:10,390 INFO L93 Difference]: Finished difference Result 1001 states and 1310 transitions. [2024-11-24 01:27:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:27:10,391 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 210 [2024-11-24 01:27:10,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:27:10,393 INFO L225 Difference]: With dead ends: 1001 [2024-11-24 01:27:10,393 INFO L226 Difference]: Without dead ends: 999 [2024-11-24 01:27:10,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:27:10,394 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 236 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:27:10,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 640 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:27:10,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-24 01:27:10,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 981. [2024-11-24 01:27:10,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 843 states have (on average 1.3594306049822065) internal successors, (1146), 899 states have internal predecessors, (1146), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:27:10,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1304 transitions. [2024-11-24 01:27:10,588 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1304 transitions. Word has length 210 [2024-11-24 01:27:10,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:27:10,588 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1304 transitions. [2024-11-24 01:27:10,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-24 01:27:10,588 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1304 transitions. [2024-11-24 01:27:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-24 01:27:10,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:27:10,589 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:27:10,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2024-11-24 01:27:10,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:27:10,790 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:27:10,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:27:10,791 INFO L85 PathProgramCache]: Analyzing trace with hash 187000481, now seen corresponding path program 1 times [2024-11-24 01:27:10,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:27:10,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820834071] [2024-11-24 01:27:10,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:27:10,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:27:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:27:10,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250224005] [2024-11-24 01:27:10,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:27:10,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:27:10,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:27:10,824 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:27:10,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-24 01:27:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:27:10,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-24 01:27:10,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:27:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 48 proven. 127 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-24 01:27:16,288 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:27:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 48 proven. 127 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-24 01:27:22,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:27:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820834071] [2024-11-24 01:27:22,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:27:22,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250224005] [2024-11-24 01:27:22,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250224005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:27:22,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:27:22,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 30 [2024-11-24 01:27:22,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91086237] [2024-11-24 01:27:22,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:27:22,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 01:27:22,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:27:22,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 01:27:22,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:27:22,294 INFO L87 Difference]: Start difference. First operand 981 states and 1304 transitions. Second operand has 31 states, 30 states have (on average 8.866666666666667) internal successors, (266), 31 states have internal predecessors, (266), 11 states have call successors, (33), 1 states have call predecessors, (33), 3 states have return successors, (34), 13 states have call predecessors, (34), 11 states have call successors, (34) [2024-11-24 01:27:45,723 WARN L286 SmtUtils]: Spent 22.14s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:27:48,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:27:49,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:27:55,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:28:03,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:28:08,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:28:11,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:28:50,151 WARN L286 SmtUtils]: Spent 36.24s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:29:09,396 WARN L286 SmtUtils]: Spent 17.01s on a formula simplification that was a NOOP. DAG size: 98 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:29:13,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:29:20,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:29:31,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:29:36,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:29:41,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:29:44,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 01:29:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:46,452 INFO L93 Difference]: Finished difference Result 999 states and 1315 transitions. [2024-11-24 01:29:46,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-24 01:29:46,452 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 8.866666666666667) internal successors, (266), 31 states have internal predecessors, (266), 11 states have call successors, (33), 1 states have call predecessors, (33), 3 states have return successors, (34), 13 states have call predecessors, (34), 11 states have call successors, (34) Word has length 211 [2024-11-24 01:29:46,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:46,454 INFO L225 Difference]: With dead ends: 999 [2024-11-24 01:29:46,454 INFO L226 Difference]: Without dead ends: 995 [2024-11-24 01:29:46,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 85.9s TimeCoverageRelationStatistics Valid=524, Invalid=1828, Unknown=0, NotChecked=0, Total=2352 [2024-11-24 01:29:46,455 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 921 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 4730 mSolverCounterSat, 134 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 4868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 4730 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:46,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 614 Invalid, 4868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 4730 Invalid, 4 Unknown, 0 Unchecked, 60.2s Time] [2024-11-24 01:29:46,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-24 01:29:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 981. [2024-11-24 01:29:46,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 843 states have (on average 1.3451957295373667) internal successors, (1134), 899 states have internal predecessors, (1134), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:29:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1292 transitions. [2024-11-24 01:29:46,597 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1292 transitions. Word has length 211 [2024-11-24 01:29:46,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:46,598 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1292 transitions. [2024-11-24 01:29:46,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 8.866666666666667) internal successors, (266), 31 states have internal predecessors, (266), 11 states have call successors, (33), 1 states have call predecessors, (33), 3 states have return successors, (34), 13 states have call predecessors, (34), 11 states have call successors, (34) [2024-11-24 01:29:46,598 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1292 transitions. [2024-11-24 01:29:46,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-24 01:29:46,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:46,599 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:46,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2024-11-24 01:29:46,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:46,799 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:29:46,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1759693019, now seen corresponding path program 1 times [2024-11-24 01:29:46,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:46,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487136613] [2024-11-24 01:29:46,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:46,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:29:46,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533485808] [2024-11-24 01:29:46,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:46,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:46,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:46,826 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:46,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-24 01:29:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:46,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 01:29:46,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:49,019 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 30 proven. 114 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-24 01:29:49,019 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:49,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:49,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487136613] [2024-11-24 01:29:49,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:29:49,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533485808] [2024-11-24 01:29:49,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533485808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:49,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:29:49,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-24 01:29:49,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217100084] [2024-11-24 01:29:49,425 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:49,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:29:49,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:49,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:29:49,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:29:49,426 INFO L87 Difference]: Start difference. First operand 981 states and 1292 transitions. Second operand has 13 states, 12 states have (on average 11.583333333333334) internal successors, (139), 13 states have internal predecessors, (139), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-24 01:29:52,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:52,184 INFO L93 Difference]: Finished difference Result 988 states and 1295 transitions. [2024-11-24 01:29:52,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:29:52,184 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 11.583333333333334) internal successors, (139), 13 states have internal predecessors, (139), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 215 [2024-11-24 01:29:52,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:52,186 INFO L225 Difference]: With dead ends: 988 [2024-11-24 01:29:52,186 INFO L226 Difference]: Without dead ends: 987 [2024-11-24 01:29:52,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:29:52,187 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 211 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:52,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 716 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2148 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-24 01:29:52,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2024-11-24 01:29:52,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 981. [2024-11-24 01:29:52,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 843 states have (on average 1.3428232502965598) internal successors, (1132), 899 states have internal predecessors, (1132), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-24 01:29:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1290 transitions. [2024-11-24 01:29:52,346 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1290 transitions. Word has length 215 [2024-11-24 01:29:52,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:52,347 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1290 transitions. [2024-11-24 01:29:52,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 11.583333333333334) internal successors, (139), 13 states have internal predecessors, (139), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-24 01:29:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1290 transitions. [2024-11-24 01:29:52,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-24 01:29:52,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:52,349 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:52,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-11-24 01:29:52,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:52,553 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:29:52,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:52,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1284091399, now seen corresponding path program 1 times [2024-11-24 01:29:52,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:52,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340338413] [2024-11-24 01:29:52,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:52,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:29:52,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117600388] [2024-11-24 01:29:52,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:52,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:52,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:52,579 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:52,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-24 01:29:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:52,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 01:29:52,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:53,757 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 71 proven. 75 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-24 01:29:53,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:59,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:59,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340338413] [2024-11-24 01:29:59,993 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:29:59,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117600388] [2024-11-24 01:29:59,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117600388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:59,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:29:59,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 01:29:59,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222387423] [2024-11-24 01:29:59,994 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:59,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:29:59,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:59,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:29:59,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2024-11-24 01:29:59,995 INFO L87 Difference]: Start difference. First operand 981 states and 1290 transitions. Second operand has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-24 01:30:03,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:03,327 INFO L93 Difference]: Finished difference Result 1125 states and 1475 transitions. [2024-11-24 01:30:03,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:30:03,328 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 216 [2024-11-24 01:30:03,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:03,330 INFO L225 Difference]: With dead ends: 1125 [2024-11-24 01:30:03,330 INFO L226 Difference]: Without dead ends: 1121 [2024-11-24 01:30:03,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=160, Invalid=489, Unknown=1, NotChecked=0, Total=650 [2024-11-24 01:30:03,331 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 159 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:03,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 906 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-24 01:30:03,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2024-11-24 01:30:03,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1081. [2024-11-24 01:30:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 935 states have (on average 1.374331550802139) internal successors, (1285), 991 states have internal predecessors, (1285), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 01:30:03,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1459 transitions. [2024-11-24 01:30:03,471 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1459 transitions. Word has length 216 [2024-11-24 01:30:03,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:03,471 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1459 transitions. [2024-11-24 01:30:03,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-24 01:30:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1459 transitions. [2024-11-24 01:30:03,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-24 01:30:03,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:03,473 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:03,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2024-11-24 01:30:03,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:03,677 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:03,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:03,678 INFO L85 PathProgramCache]: Analyzing trace with hash -840038501, now seen corresponding path program 3 times [2024-11-24 01:30:03,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:03,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980566243] [2024-11-24 01:30:03,678 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:30:03,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:03,758 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-24 01:30:03,758 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:30:03,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2070522125] [2024-11-24 01:30:03,759 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:30:03,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:03,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:03,762 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:03,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-24 01:30:03,849 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 01:30:03,849 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:30:03,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:30:03,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:04,573 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-24 01:30:04,573 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:30:04,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:04,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980566243] [2024-11-24 01:30:04,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:30:04,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070522125] [2024-11-24 01:30:04,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070522125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:30:04,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:30:04,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:30:04,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90970689] [2024-11-24 01:30:04,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:30:04,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:30:04,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:04,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:30:04,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:30:04,577 INFO L87 Difference]: Start difference. First operand 1081 states and 1459 transitions. Second operand has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:30:05,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:05,392 INFO L93 Difference]: Finished difference Result 1103 states and 1459 transitions. [2024-11-24 01:30:05,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:30:05,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 224 [2024-11-24 01:30:05,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:05,395 INFO L225 Difference]: With dead ends: 1103 [2024-11-24 01:30:05,395 INFO L226 Difference]: Without dead ends: 1102 [2024-11-24 01:30:05,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:30:05,396 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 142 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:05,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 394 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:30:05,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-11-24 01:30:05,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1080. [2024-11-24 01:30:05,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 935 states have (on average 1.3657754010695187) internal successors, (1277), 990 states have internal predecessors, (1277), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 01:30:05,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1451 transitions. [2024-11-24 01:30:05,548 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1451 transitions. Word has length 224 [2024-11-24 01:30:05,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:05,548 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1451 transitions. [2024-11-24 01:30:05,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 01:30:05,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1451 transitions. [2024-11-24 01:30:05,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-24 01:30:05,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:05,550 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:05,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2024-11-24 01:30:05,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:05,750 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:05,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:05,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1118982101, now seen corresponding path program 2 times [2024-11-24 01:30:05,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:05,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627775218] [2024-11-24 01:30:05,751 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:30:05,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:05,781 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:30:05,781 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:30:05,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [298920212] [2024-11-24 01:30:05,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:30:05,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:05,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:05,787 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:05,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-24 01:30:05,927 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:30:05,928 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:30:05,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:30:05,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:06,625 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:30:06,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:07,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:07,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627775218] [2024-11-24 01:30:07,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:30:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298920212] [2024-11-24 01:30:07,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298920212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:07,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:30:07,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-24 01:30:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802903255] [2024-11-24 01:30:07,243 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:07,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:30:07,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:07,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:30:07,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:30:07,244 INFO L87 Difference]: Start difference. First operand 1080 states and 1451 transitions. Second operand has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:30:07,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:07,795 INFO L93 Difference]: Finished difference Result 1082 states and 1451 transitions. [2024-11-24 01:30:07,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:30:07,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 225 [2024-11-24 01:30:07,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:07,798 INFO L225 Difference]: With dead ends: 1082 [2024-11-24 01:30:07,798 INFO L226 Difference]: Without dead ends: 1081 [2024-11-24 01:30:07,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:30:07,799 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 91 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:07,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 362 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:30:07,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-24 01:30:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1080. [2024-11-24 01:30:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 935 states have (on average 1.3647058823529412) internal successors, (1276), 990 states have internal predecessors, (1276), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 01:30:07,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1450 transitions. [2024-11-24 01:30:07,992 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1450 transitions. Word has length 225 [2024-11-24 01:30:07,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:07,992 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1450 transitions. [2024-11-24 01:30:07,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:30:07,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1450 transitions. [2024-11-24 01:30:07,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-24 01:30:07,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:07,993 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:08,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2024-11-24 01:30:08,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:08,194 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:08,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:08,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1899180930, now seen corresponding path program 1 times [2024-11-24 01:30:08,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:08,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521929957] [2024-11-24 01:30:08,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:08,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:30:08,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275771640] [2024-11-24 01:30:08,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:08,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:08,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:08,228 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:08,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-24 01:30:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:08,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:30:08,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 41 proven. 85 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:30:08,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:09,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:09,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521929957] [2024-11-24 01:30:09,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:30:09,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275771640] [2024-11-24 01:30:09,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275771640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:09,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:30:09,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-24 01:30:09,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976977922] [2024-11-24 01:30:09,079 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:09,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:30:09,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:09,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:30:09,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:30:09,081 INFO L87 Difference]: Start difference. First operand 1080 states and 1450 transitions. Second operand has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:30:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:10,032 INFO L93 Difference]: Finished difference Result 1101 states and 1459 transitions. [2024-11-24 01:30:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:30:10,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 226 [2024-11-24 01:30:10,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:10,035 INFO L225 Difference]: With dead ends: 1101 [2024-11-24 01:30:10,035 INFO L226 Difference]: Without dead ends: 1099 [2024-11-24 01:30:10,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:30:10,036 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 36 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:10,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 632 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:30:10,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-11-24 01:30:10,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1082. [2024-11-24 01:30:10,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 937 states have (on average 1.360725720384205) internal successors, (1275), 992 states have internal predecessors, (1275), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 01:30:10,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1449 transitions. [2024-11-24 01:30:10,183 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1449 transitions. Word has length 226 [2024-11-24 01:30:10,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:10,183 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1449 transitions. [2024-11-24 01:30:10,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:30:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1449 transitions. [2024-11-24 01:30:10,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-24 01:30:10,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:10,185 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:10,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2024-11-24 01:30:10,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2024-11-24 01:30:10,385 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:10,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:10,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1254933148, now seen corresponding path program 1 times [2024-11-24 01:30:10,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:10,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940613378] [2024-11-24 01:30:10,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:10,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:30:10,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [948857164] [2024-11-24 01:30:10,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:10,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:10,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:10,417 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:10,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-24 01:30:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:10,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:30:10,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:30:11,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:12,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:12,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940613378] [2024-11-24 01:30:12,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:30:12,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948857164] [2024-11-24 01:30:12,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948857164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:12,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:30:12,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-24 01:30:12,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374941438] [2024-11-24 01:30:12,900 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:12,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:30:12,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:12,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:30:12,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:30:12,901 INFO L87 Difference]: Start difference. First operand 1082 states and 1449 transitions. Second operand has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:30:14,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:14,321 INFO L93 Difference]: Finished difference Result 1200 states and 1586 transitions. [2024-11-24 01:30:14,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:30:14,322 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 227 [2024-11-24 01:30:14,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:14,324 INFO L225 Difference]: With dead ends: 1200 [2024-11-24 01:30:14,324 INFO L226 Difference]: Without dead ends: 1198 [2024-11-24 01:30:14,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:30:14,325 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 172 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:14,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 755 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:30:14,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2024-11-24 01:30:14,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1178. [2024-11-24 01:30:14,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1025 states have (on average 1.3502439024390245) internal successors, (1384), 1080 states have internal predecessors, (1384), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-24 01:30:14,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1574 transitions. [2024-11-24 01:30:14,492 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1574 transitions. Word has length 227 [2024-11-24 01:30:14,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:14,493 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1574 transitions. [2024-11-24 01:30:14,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:30:14,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1574 transitions. [2024-11-24 01:30:14,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-24 01:30:14,495 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:14,495 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:14,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2024-11-24 01:30:14,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2024-11-24 01:30:14,695 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:14,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:14,696 INFO L85 PathProgramCache]: Analyzing trace with hash -248221756, now seen corresponding path program 1 times [2024-11-24 01:30:14,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:14,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188675686] [2024-11-24 01:30:14,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:14,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:14,949 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-24 01:30:14,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:14,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188675686] [2024-11-24 01:30:14,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188675686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:14,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212458776] [2024-11-24 01:30:14,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:14,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:14,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:14,954 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:14,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-24 01:30:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:15,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:30:15,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-24 01:30:15,494 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:15,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212458776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:15,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:30:15,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-24 01:30:15,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983726233] [2024-11-24 01:30:15,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:15,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:30:15,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:15,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:30:15,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:30:15,628 INFO L87 Difference]: Start difference. First operand 1178 states and 1574 transitions. Second operand has 10 states, 9 states have (on average 23.0) internal successors, (207), 10 states have internal predecessors, (207), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-24 01:30:16,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:16,528 INFO L93 Difference]: Finished difference Result 1371 states and 1781 transitions. [2024-11-24 01:30:16,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:30:16,528 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 23.0) internal successors, (207), 10 states have internal predecessors, (207), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 228 [2024-11-24 01:30:16,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:16,530 INFO L225 Difference]: With dead ends: 1371 [2024-11-24 01:30:16,530 INFO L226 Difference]: Without dead ends: 1370 [2024-11-24 01:30:16,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:30:16,531 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 156 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:16,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 648 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:30:16,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2024-11-24 01:30:16,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1280. [2024-11-24 01:30:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1119 states have (on average 1.3798033958891869) internal successors, (1544), 1174 states have internal predecessors, (1544), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-24 01:30:16,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1750 transitions. [2024-11-24 01:30:16,711 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1750 transitions. Word has length 228 [2024-11-24 01:30:16,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:16,711 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1750 transitions. [2024-11-24 01:30:16,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 23.0) internal successors, (207), 10 states have internal predecessors, (207), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-24 01:30:16,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1750 transitions. [2024-11-24 01:30:16,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-24 01:30:16,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:16,713 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:16,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2024-11-24 01:30:16,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2024-11-24 01:30:16,914 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:16,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:16,915 INFO L85 PathProgramCache]: Analyzing trace with hash 895060326, now seen corresponding path program 1 times [2024-11-24 01:30:16,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:16,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615023830] [2024-11-24 01:30:16,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:16,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:30:16,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30708384] [2024-11-24 01:30:16,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:16,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:16,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:16,944 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:16,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-24 01:30:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:17,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:30:17,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 41 proven. 88 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:30:17,875 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:18,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:18,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615023830] [2024-11-24 01:30:18,072 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:30:18,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30708384] [2024-11-24 01:30:18,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30708384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:18,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:30:18,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 01:30:18,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086996299] [2024-11-24 01:30:18,073 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:18,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:30:18,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:18,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:30:18,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:30:18,074 INFO L87 Difference]: Start difference. First operand 1280 states and 1750 transitions. Second operand has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:30:19,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:19,264 INFO L93 Difference]: Finished difference Result 1295 states and 1750 transitions. [2024-11-24 01:30:19,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:30:19,265 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 229 [2024-11-24 01:30:19,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:19,267 INFO L225 Difference]: With dead ends: 1295 [2024-11-24 01:30:19,267 INFO L226 Difference]: Without dead ends: 1294 [2024-11-24 01:30:19,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:30:19,268 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 33 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:19,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 713 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:30:19,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2024-11-24 01:30:19,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1280. [2024-11-24 01:30:19,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1119 states have (on average 1.3780160857908847) internal successors, (1542), 1174 states have internal predecessors, (1542), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-24 01:30:19,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1748 transitions. [2024-11-24 01:30:19,467 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1748 transitions. Word has length 229 [2024-11-24 01:30:19,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:19,468 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1748 transitions. [2024-11-24 01:30:19,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:30:19,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1748 transitions. [2024-11-24 01:30:19,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-24 01:30:19,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:19,469 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:19,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2024-11-24 01:30:19,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:19,669 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:19,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:19,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1090527035, now seen corresponding path program 2 times [2024-11-24 01:30:19,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:19,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147118820] [2024-11-24 01:30:19,670 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:30:19,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:19,696 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:30:19,697 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:30:19,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1048607811] [2024-11-24 01:30:19,698 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:30:19,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:19,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:19,703 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:19,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-24 01:30:19,842 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:30:19,842 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:30:19,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:30:19,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:20,332 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 85 proven. 46 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:30:20,333 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:20,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:20,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147118820] [2024-11-24 01:30:20,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:30:20,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048607811] [2024-11-24 01:30:20,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048607811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:20,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:30:20,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-24 01:30:20,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434418629] [2024-11-24 01:30:20,421 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:20,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:30:20,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:20,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:30:20,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:30:20,422 INFO L87 Difference]: Start difference. First operand 1280 states and 1748 transitions. Second operand has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:30:21,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:21,011 INFO L93 Difference]: Finished difference Result 1308 states and 1748 transitions. [2024-11-24 01:30:21,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:30:21,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 229 [2024-11-24 01:30:21,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:21,014 INFO L225 Difference]: With dead ends: 1308 [2024-11-24 01:30:21,014 INFO L226 Difference]: Without dead ends: 1306 [2024-11-24 01:30:21,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:30:21,014 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 150 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:21,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 876 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:30:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2024-11-24 01:30:21,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1278. [2024-11-24 01:30:21,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1119 states have (on average 1.3672922252010724) internal successors, (1530), 1172 states have internal predecessors, (1530), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-24 01:30:21,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1736 transitions. [2024-11-24 01:30:21,181 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1736 transitions. Word has length 229 [2024-11-24 01:30:21,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:21,181 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1736 transitions. [2024-11-24 01:30:21,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:30:21,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1736 transitions. [2024-11-24 01:30:21,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-24 01:30:21,182 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:21,182 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:21,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-11-24 01:30:21,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:21,383 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:21,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:21,383 INFO L85 PathProgramCache]: Analyzing trace with hash -16842061, now seen corresponding path program 2 times [2024-11-24 01:30:21,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:21,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799712397] [2024-11-24 01:30:21,384 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:30:21,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:21,433 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:30:21,433 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:30:21,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857378299] [2024-11-24 01:30:21,438 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:30:21,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:21,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:21,440 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:21,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-11-24 01:30:21,594 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:30:21,594 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:30:21,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:30:21,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-24 01:30:23,596 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:35,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:35,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799712397] [2024-11-24 01:30:35,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:30:35,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857378299] [2024-11-24 01:30:35,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857378299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:35,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:30:35,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-24 01:30:35,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271256788] [2024-11-24 01:30:35,969 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:35,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:30:35,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:35,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:30:35,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=206, Unknown=3, NotChecked=0, Total=272 [2024-11-24 01:30:35,970 INFO L87 Difference]: Start difference. First operand 1278 states and 1736 transitions. Second operand has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 13 states have internal predecessors, (148), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 01:30:38,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:38,099 INFO L93 Difference]: Finished difference Result 1415 states and 1921 transitions. [2024-11-24 01:30:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:30:38,100 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 13 states have internal predecessors, (148), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 229 [2024-11-24 01:30:38,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:38,103 INFO L225 Difference]: With dead ends: 1415 [2024-11-24 01:30:38,103 INFO L226 Difference]: Without dead ends: 1412 [2024-11-24 01:30:38,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=123, Invalid=380, Unknown=3, NotChecked=0, Total=506 [2024-11-24 01:30:38,108 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 334 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:38,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1052 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:30:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-24 01:30:38,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1396. [2024-11-24 01:30:38,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.3683781581092094) internal successors, (1679), 1280 states have internal predecessors, (1679), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 01:30:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1905 transitions. [2024-11-24 01:30:38,394 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1905 transitions. Word has length 229 [2024-11-24 01:30:38,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:38,394 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1905 transitions. [2024-11-24 01:30:38,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 13 states have internal predecessors, (148), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 01:30:38,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1905 transitions. [2024-11-24 01:30:38,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-24 01:30:38,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:38,395 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:38,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2024-11-24 01:30:38,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:38,596 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:38,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:38,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1977066502, now seen corresponding path program 1 times [2024-11-24 01:30:38,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:38,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317345054] [2024-11-24 01:30:38,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:38,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:30:38,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823549322] [2024-11-24 01:30:38,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:38,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:38,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:38,620 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:38,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-11-24 01:30:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:38,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:30:38,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:39,474 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 41 proven. 89 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:30:39,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:39,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:39,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317345054] [2024-11-24 01:30:39,743 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:30:39,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823549322] [2024-11-24 01:30:39,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823549322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:39,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:30:39,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 01:30:39,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942282433] [2024-11-24 01:30:39,744 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:39,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:30:39,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:39,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:30:39,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:30:39,748 INFO L87 Difference]: Start difference. First operand 1396 states and 1905 transitions. Second operand has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 8 states have internal predecessors, (146), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:30:40,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:40,648 INFO L93 Difference]: Finished difference Result 1480 states and 1930 transitions. [2024-11-24 01:30:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:30:40,648 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 8 states have internal predecessors, (146), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 230 [2024-11-24 01:30:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:40,650 INFO L225 Difference]: With dead ends: 1480 [2024-11-24 01:30:40,650 INFO L226 Difference]: Without dead ends: 1479 [2024-11-24 01:30:40,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:30:40,651 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 224 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:40,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 617 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:30:40,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2024-11-24 01:30:40,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1396. [2024-11-24 01:30:40,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.367563162184189) internal successors, (1678), 1280 states have internal predecessors, (1678), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 01:30:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1904 transitions. [2024-11-24 01:30:40,845 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1904 transitions. Word has length 230 [2024-11-24 01:30:40,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:40,845 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1904 transitions. [2024-11-24 01:30:40,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 8 states have internal predecessors, (146), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:30:40,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1904 transitions. [2024-11-24 01:30:40,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-24 01:30:40,847 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:40,847 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:40,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2024-11-24 01:30:41,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:41,048 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:41,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash -522103706, now seen corresponding path program 2 times [2024-11-24 01:30:41,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:41,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292887283] [2024-11-24 01:30:41,049 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:30:41,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:41,067 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:30:41,067 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:30:41,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [384055670] [2024-11-24 01:30:41,068 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:30:41,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:41,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:41,070 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:41,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2024-11-24 01:30:41,188 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:30:41,188 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:30:41,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:30:41,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:43,392 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-24 01:30:43,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:51,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:30:51,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292887283] [2024-11-24 01:30:51,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:30:51,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384055670] [2024-11-24 01:30:51,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384055670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:30:51,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:30:51,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-24 01:30:51,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373439196] [2024-11-24 01:30:51,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:51,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:30:51,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:51,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:30:51,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=206, Unknown=2, NotChecked=0, Total=272 [2024-11-24 01:30:51,819 INFO L87 Difference]: Start difference. First operand 1396 states and 1904 transitions. Second operand has 13 states, 12 states have (on average 12.416666666666666) internal successors, (149), 13 states have internal predecessors, (149), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 01:30:53,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:30:53,892 INFO L93 Difference]: Finished difference Result 1415 states and 1913 transitions. [2024-11-24 01:30:53,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:30:53,892 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.416666666666666) internal successors, (149), 13 states have internal predecessors, (149), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 230 [2024-11-24 01:30:53,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:30:53,894 INFO L225 Difference]: With dead ends: 1415 [2024-11-24 01:30:53,894 INFO L226 Difference]: Without dead ends: 1412 [2024-11-24 01:30:53,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=136, Invalid=414, Unknown=2, NotChecked=0, Total=552 [2024-11-24 01:30:53,895 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 331 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:30:53,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1155 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 01:30:53,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-24 01:30:54,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1396. [2024-11-24 01:30:54,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.3618581907090463) internal successors, (1671), 1280 states have internal predecessors, (1671), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 01:30:54,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1897 transitions. [2024-11-24 01:30:54,049 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1897 transitions. Word has length 230 [2024-11-24 01:30:54,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:30:54,049 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1897 transitions. [2024-11-24 01:30:54,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.416666666666666) internal successors, (149), 13 states have internal predecessors, (149), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 01:30:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1897 transitions. [2024-11-24 01:30:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-24 01:30:54,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:30:54,050 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:30:54,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2024-11-24 01:30:54,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2024-11-24 01:30:54,250 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:30:54,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:30:54,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1159519592, now seen corresponding path program 1 times [2024-11-24 01:30:54,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:30:54,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190744785] [2024-11-24 01:30:54,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:54,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:30:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:30:54,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368808782] [2024-11-24 01:30:54,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:30:54,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:30:54,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:30:54,277 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:30:54,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2024-11-24 01:30:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:54,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 01:30:54,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 30 proven. 134 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-24 01:30:55,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:00,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:00,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190744785] [2024-11-24 01:31:00,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:31:00,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368808782] [2024-11-24 01:31:00,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368808782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:00,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:31:00,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:31:00,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895621875] [2024-11-24 01:31:00,016 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:00,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:31:00,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:00,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:31:00,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=191, Unknown=1, NotChecked=0, Total=240 [2024-11-24 01:31:00,017 INFO L87 Difference]: Start difference. First operand 1396 states and 1897 transitions. Second operand has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 14 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 01:31:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:01,483 INFO L93 Difference]: Finished difference Result 1401 states and 1897 transitions. [2024-11-24 01:31:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:31:01,483 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 14 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 231 [2024-11-24 01:31:01,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:01,486 INFO L225 Difference]: With dead ends: 1401 [2024-11-24 01:31:01,487 INFO L226 Difference]: Without dead ends: 1400 [2024-11-24 01:31:01,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=63, Invalid=242, Unknown=1, NotChecked=0, Total=306 [2024-11-24 01:31:01,488 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 250 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:01,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 703 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:31:01,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-11-24 01:31:01,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1396. [2024-11-24 01:31:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.361043194784026) internal successors, (1670), 1280 states have internal predecessors, (1670), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 01:31:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1896 transitions. [2024-11-24 01:31:01,732 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1896 transitions. Word has length 231 [2024-11-24 01:31:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:01,732 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1896 transitions. [2024-11-24 01:31:01,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 14 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 01:31:01,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1896 transitions. [2024-11-24 01:31:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-24 01:31:01,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:01,734 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:01,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2024-11-24 01:31:01,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:01,934 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:01,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash 994654485, now seen corresponding path program 2 times [2024-11-24 01:31:01,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:01,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561164958] [2024-11-24 01:31:01,935 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:31:01,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:01,962 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:31:01,962 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:31:01,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1723991887] [2024-11-24 01:31:01,962 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:31:01,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:01,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:01,964 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:01,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-11-24 01:31:02,075 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:31:02,076 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:31:02,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 01:31:02,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 3 proven. 140 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-24 01:31:04,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:09,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:09,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561164958] [2024-11-24 01:31:09,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:31:09,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723991887] [2024-11-24 01:31:09,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723991887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:09,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:31:09,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:31:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919380716] [2024-11-24 01:31:09,288 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:09,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:31:09,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:09,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:31:09,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=228, Unknown=2, NotChecked=0, Total=306 [2024-11-24 01:31:09,289 INFO L87 Difference]: Start difference. First operand 1396 states and 1896 transitions. Second operand has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 01:31:11,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:11,111 INFO L93 Difference]: Finished difference Result 1416 states and 1913 transitions. [2024-11-24 01:31:11,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:31:11,112 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 231 [2024-11-24 01:31:11,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:11,114 INFO L225 Difference]: With dead ends: 1416 [2024-11-24 01:31:11,114 INFO L226 Difference]: Without dead ends: 1410 [2024-11-24 01:31:11,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=141, Invalid=409, Unknown=2, NotChecked=0, Total=552 [2024-11-24 01:31:11,115 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 254 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:11,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 645 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:31:11,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-24 01:31:11,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1393. [2024-11-24 01:31:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1224 states have (on average 1.3562091503267975) internal successors, (1660), 1277 states have internal predecessors, (1660), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 01:31:11,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1886 transitions. [2024-11-24 01:31:11,330 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1886 transitions. Word has length 231 [2024-11-24 01:31:11,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:11,331 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1886 transitions. [2024-11-24 01:31:11,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 01:31:11,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1886 transitions. [2024-11-24 01:31:11,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-24 01:31:11,333 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:11,333 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:11,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2024-11-24 01:31:11,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:11,534 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:11,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:11,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1585369160, now seen corresponding path program 1 times [2024-11-24 01:31:11,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:11,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044047489] [2024-11-24 01:31:11,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:11,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:11,821 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-24 01:31:11,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:11,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044047489] [2024-11-24 01:31:11,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044047489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:11,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433483776] [2024-11-24 01:31:11,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:11,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:11,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:11,823 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:11,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2024-11-24 01:31:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:11,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:31:11,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-24 01:31:12,256 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:12,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433483776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:12,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:31:12,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-24 01:31:12,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873967826] [2024-11-24 01:31:12,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:12,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:31:12,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:12,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:31:12,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:31:12,431 INFO L87 Difference]: Start difference. First operand 1393 states and 1886 transitions. Second operand has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-24 01:31:13,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:13,463 INFO L93 Difference]: Finished difference Result 1424 states and 1886 transitions. [2024-11-24 01:31:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:31:13,463 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 232 [2024-11-24 01:31:13,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:13,466 INFO L225 Difference]: With dead ends: 1424 [2024-11-24 01:31:13,466 INFO L226 Difference]: Without dead ends: 1423 [2024-11-24 01:31:13,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:31:13,467 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 58 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:13,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1035 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:31:13,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2024-11-24 01:31:13,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1393. [2024-11-24 01:31:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1224 states have (on average 1.3545751633986929) internal successors, (1658), 1277 states have internal predecessors, (1658), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 01:31:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1884 transitions. [2024-11-24 01:31:13,658 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1884 transitions. Word has length 232 [2024-11-24 01:31:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:13,658 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1884 transitions. [2024-11-24 01:31:13,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-24 01:31:13,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1884 transitions. [2024-11-24 01:31:13,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-24 01:31:13,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:13,660 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:13,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2024-11-24 01:31:13,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:13,860 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:13,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:13,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1901803882, now seen corresponding path program 1 times [2024-11-24 01:31:13,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:13,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938505275] [2024-11-24 01:31:13,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:13,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:31:13,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139499617] [2024-11-24 01:31:13,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:13,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:13,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:13,895 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:13,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2024-11-24 01:31:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:14,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:31:14,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:15,074 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 41 proven. 92 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:31:15,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:15,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:15,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938505275] [2024-11-24 01:31:15,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:31:15,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139499617] [2024-11-24 01:31:15,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139499617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:15,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:31:15,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-24 01:31:15,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415241950] [2024-11-24 01:31:15,293 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:15,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:31:15,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:15,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:31:15,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:31:15,294 INFO L87 Difference]: Start difference. First operand 1393 states and 1884 transitions. Second operand has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:31:16,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:16,481 INFO L93 Difference]: Finished difference Result 1413 states and 1884 transitions. [2024-11-24 01:31:16,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:31:16,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 233 [2024-11-24 01:31:16,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:16,484 INFO L225 Difference]: With dead ends: 1413 [2024-11-24 01:31:16,484 INFO L226 Difference]: Without dead ends: 1412 [2024-11-24 01:31:16,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:31:16,485 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 172 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:16,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 591 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:31:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-24 01:31:16,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1393. [2024-11-24 01:31:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1224 states have (on average 1.3537581699346406) internal successors, (1657), 1277 states have internal predecessors, (1657), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-24 01:31:16,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1883 transitions. [2024-11-24 01:31:16,679 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1883 transitions. Word has length 233 [2024-11-24 01:31:16,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:16,679 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1883 transitions. [2024-11-24 01:31:16,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:31:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1883 transitions. [2024-11-24 01:31:16,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-24 01:31:16,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:16,681 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:16,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2024-11-24 01:31:16,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:16,882 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:16,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:16,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2022535482, now seen corresponding path program 3 times [2024-11-24 01:31:16,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:16,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136427500] [2024-11-24 01:31:16,882 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:31:16,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:16,910 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-24 01:31:16,911 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:31:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:31:17,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:17,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136427500] [2024-11-24 01:31:17,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136427500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:17,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421545255] [2024-11-24 01:31:17,112 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:31:17,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:17,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:17,114 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:17,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2024-11-24 01:31:17,228 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-24 01:31:17,228 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:31:17,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:31:17,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:17,436 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:31:17,436 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:17,715 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-24 01:31:17,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421545255] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:31:17,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:31:17,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2024-11-24 01:31:17,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582237102] [2024-11-24 01:31:17,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:17,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:31:17,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:17,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:31:17,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:31:17,717 INFO L87 Difference]: Start difference. First operand 1393 states and 1883 transitions. Second operand has 9 states, 9 states have (on average 22.333333333333332) internal successors, (201), 9 states have internal predecessors, (201), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 01:31:18,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:18,672 INFO L93 Difference]: Finished difference Result 2343 states and 3290 transitions. [2024-11-24 01:31:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:31:18,672 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.333333333333332) internal successors, (201), 9 states have internal predecessors, (201), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 235 [2024-11-24 01:31:18,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:18,676 INFO L225 Difference]: With dead ends: 2343 [2024-11-24 01:31:18,676 INFO L226 Difference]: Without dead ends: 2314 [2024-11-24 01:31:18,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 468 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:31:18,677 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 743 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:18,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1419 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:31:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2024-11-24 01:31:18,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 1605. [2024-11-24 01:31:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1420 states have (on average 1.3992957746478873) internal successors, (1987), 1473 states have internal predecessors, (1987), 129 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-24 01:31:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2245 transitions. [2024-11-24 01:31:18,897 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2245 transitions. Word has length 235 [2024-11-24 01:31:18,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:18,897 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 2245 transitions. [2024-11-24 01:31:18,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.333333333333332) internal successors, (201), 9 states have internal predecessors, (201), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 01:31:18,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2245 transitions. [2024-11-24 01:31:18,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-24 01:31:18,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:18,899 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:18,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2024-11-24 01:31:19,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:19,100 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:19,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:19,100 INFO L85 PathProgramCache]: Analyzing trace with hash -56329316, now seen corresponding path program 1 times [2024-11-24 01:31:19,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:19,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37448840] [2024-11-24 01:31:19,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:19,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:31:19,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209648801] [2024-11-24 01:31:19,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:19,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:19,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:19,133 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:19,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2024-11-24 01:31:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:19,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 01:31:19,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:21,414 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 3 proven. 165 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-24 01:31:21,415 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:21,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:21,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37448840] [2024-11-24 01:31:21,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:31:21,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209648801] [2024-11-24 01:31:21,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209648801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:21,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:31:21,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 01:31:21,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988060144] [2024-11-24 01:31:21,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:21,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:31:21,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:21,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:31:21,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:31:21,668 INFO L87 Difference]: Start difference. First operand 1605 states and 2245 transitions. Second operand has 15 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-24 01:31:24,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:24,206 INFO L93 Difference]: Finished difference Result 1768 states and 2494 transitions. [2024-11-24 01:31:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:31:24,206 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 244 [2024-11-24 01:31:24,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:24,209 INFO L225 Difference]: With dead ends: 1768 [2024-11-24 01:31:24,209 INFO L226 Difference]: Without dead ends: 1767 [2024-11-24 01:31:24,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:31:24,210 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 354 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:24,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1150 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 01:31:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-24 01:31:24,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1736. [2024-11-24 01:31:24,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.4249512670565303) internal successors, (2193), 1592 states have internal predecessors, (2193), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-24 01:31:24,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2475 transitions. [2024-11-24 01:31:24,443 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2475 transitions. Word has length 244 [2024-11-24 01:31:24,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:24,443 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2475 transitions. [2024-11-24 01:31:24,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-24 01:31:24,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2475 transitions. [2024-11-24 01:31:24,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-24 01:31:24,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:24,445 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:24,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Forceful destruction successful, exit code 0 [2024-11-24 01:31:24,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:24,645 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:24,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:24,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1746208714, now seen corresponding path program 1 times [2024-11-24 01:31:24,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:24,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036018827] [2024-11-24 01:31:24,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:24,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:31:24,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292795961] [2024-11-24 01:31:24,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:24,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:24,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:24,674 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:24,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2024-11-24 01:31:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:24,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 01:31:24,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:26,862 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 3 proven. 168 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-24 01:31:26,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:27,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:27,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036018827] [2024-11-24 01:31:27,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:31:27,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292795961] [2024-11-24 01:31:27,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292795961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:27,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:31:27,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 01:31:27,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287300103] [2024-11-24 01:31:27,238 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:27,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:31:27,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:27,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:31:27,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:31:27,240 INFO L87 Difference]: Start difference. First operand 1736 states and 2475 transitions. Second operand has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-24 01:31:29,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:29,341 INFO L93 Difference]: Finished difference Result 1768 states and 2491 transitions. [2024-11-24 01:31:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:31:29,342 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 245 [2024-11-24 01:31:29,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:29,346 INFO L225 Difference]: With dead ends: 1768 [2024-11-24 01:31:29,346 INFO L226 Difference]: Without dead ends: 1767 [2024-11-24 01:31:29,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:31:29,347 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 403 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:29,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 953 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:31:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-24 01:31:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1736. [2024-11-24 01:31:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.4230019493177388) internal successors, (2190), 1592 states have internal predecessors, (2190), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-24 01:31:29,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2472 transitions. [2024-11-24 01:31:29,587 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2472 transitions. Word has length 245 [2024-11-24 01:31:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:29,587 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2472 transitions. [2024-11-24 01:31:29,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-24 01:31:29,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2472 transitions. [2024-11-24 01:31:29,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-24 01:31:29,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:29,588 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:29,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2024-11-24 01:31:29,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2024-11-24 01:31:29,789 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:29,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:29,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1702104798, now seen corresponding path program 1 times [2024-11-24 01:31:29,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:29,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555518593] [2024-11-24 01:31:29,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:29,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:31:29,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73950331] [2024-11-24 01:31:29,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:29,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:29,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:29,818 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:29,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2024-11-24 01:31:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:29,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 01:31:29,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 3 proven. 171 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-24 01:31:31,656 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:31,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:31,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555518593] [2024-11-24 01:31:31,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:31:31,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73950331] [2024-11-24 01:31:31,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73950331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:31,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:31:31,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:31:31,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076659642] [2024-11-24 01:31:31,853 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:31,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:31:31,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:31,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:31:31,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:31:31,854 INFO L87 Difference]: Start difference. First operand 1736 states and 2472 transitions. Second operand has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-24 01:31:35,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:35,155 INFO L93 Difference]: Finished difference Result 1755 states and 2474 transitions. [2024-11-24 01:31:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:31:35,156 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 246 [2024-11-24 01:31:35,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:35,158 INFO L225 Difference]: With dead ends: 1755 [2024-11-24 01:31:35,159 INFO L226 Difference]: Without dead ends: 1754 [2024-11-24 01:31:35,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:31:35,160 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 541 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:35,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 899 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 01:31:35,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-24 01:31:35,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1736. [2024-11-24 01:31:35,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.4210526315789473) internal successors, (2187), 1592 states have internal predecessors, (2187), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-24 01:31:35,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2469 transitions. [2024-11-24 01:31:35,442 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2469 transitions. Word has length 246 [2024-11-24 01:31:35,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:35,443 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2469 transitions. [2024-11-24 01:31:35,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-24 01:31:35,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2469 transitions. [2024-11-24 01:31:35,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-24 01:31:35,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:35,444 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:35,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2024-11-24 01:31:35,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:35,644 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:35,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1225641272, now seen corresponding path program 1 times [2024-11-24 01:31:35,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:35,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563963613] [2024-11-24 01:31:35,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:31:35,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434497733] [2024-11-24 01:31:35,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:35,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:35,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:35,678 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:35,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2024-11-24 01:31:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:35,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 01:31:35,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 3 proven. 174 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-24 01:31:37,559 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:37,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:37,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563963613] [2024-11-24 01:31:37,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:31:37,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434497733] [2024-11-24 01:31:37,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434497733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:37,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:31:37,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:31:37,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728954353] [2024-11-24 01:31:37,899 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:37,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:31:37,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:37,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:31:37,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:31:37,900 INFO L87 Difference]: Start difference. First operand 1736 states and 2469 transitions. Second operand has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-24 01:31:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:40,539 INFO L93 Difference]: Finished difference Result 1755 states and 2471 transitions. [2024-11-24 01:31:40,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:31:40,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 247 [2024-11-24 01:31:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:40,542 INFO L225 Difference]: With dead ends: 1755 [2024-11-24 01:31:40,543 INFO L226 Difference]: Without dead ends: 1754 [2024-11-24 01:31:40,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:31:40,543 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 559 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:40,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 850 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 01:31:40,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-24 01:31:40,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1736. [2024-11-24 01:31:40,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.4191033138401559) internal successors, (2184), 1592 states have internal predecessors, (2184), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-24 01:31:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2466 transitions. [2024-11-24 01:31:40,760 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2466 transitions. Word has length 247 [2024-11-24 01:31:40,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:40,761 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2466 transitions. [2024-11-24 01:31:40,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-24 01:31:40,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2466 transitions. [2024-11-24 01:31:40,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-24 01:31:40,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:40,765 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:40,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2024-11-24 01:31:40,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2024-11-24 01:31:40,966 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:40,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:40,966 INFO L85 PathProgramCache]: Analyzing trace with hash -659826144, now seen corresponding path program 1 times [2024-11-24 01:31:40,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:40,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372353668] [2024-11-24 01:31:40,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:40,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:31:40,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644636450] [2024-11-24 01:31:40,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:40,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:40,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:40,998 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:40,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2024-11-24 01:31:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:41,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:31:41,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-24 01:31:41,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:31:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-24 01:31:50,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:50,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372353668] [2024-11-24 01:31:50,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:31:50,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644636450] [2024-11-24 01:31:50,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644636450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:31:50,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:31:50,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-11-24 01:31:50,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637498208] [2024-11-24 01:31:50,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:31:50,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:31:50,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:50,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:31:50,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-11-24 01:31:50,067 INFO L87 Difference]: Start difference. First operand 1736 states and 2466 transitions. Second operand has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-24 01:31:51,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:51,257 INFO L93 Difference]: Finished difference Result 1822 states and 2491 transitions. [2024-11-24 01:31:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:31:51,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 248 [2024-11-24 01:31:51,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:51,260 INFO L225 Difference]: With dead ends: 1822 [2024-11-24 01:31:51,260 INFO L226 Difference]: Without dead ends: 1815 [2024-11-24 01:31:51,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 486 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2024-11-24 01:31:51,261 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 293 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:51,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 623 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:31:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2024-11-24 01:31:51,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1748. [2024-11-24 01:31:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1550 states have (on average 1.4122580645161291) internal successors, (2189), 1603 states have internal predecessors, (2189), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-24 01:31:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2473 transitions. [2024-11-24 01:31:51,582 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2473 transitions. Word has length 248 [2024-11-24 01:31:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:51,583 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2473 transitions. [2024-11-24 01:31:51,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-24 01:31:51,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2473 transitions. [2024-11-24 01:31:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-24 01:31:51,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:51,585 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:51,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2024-11-24 01:31:51,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:51,790 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:31:51,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:51,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1020226106, now seen corresponding path program 1 times [2024-11-24 01:31:51,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:51,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227065864] [2024-11-24 01:31:51,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:51,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:31:51,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829410433] [2024-11-24 01:31:51,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:51,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:51,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:51,818 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:51,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2024-11-24 01:31:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:51,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:31:51,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:31:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-24 01:31:52,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:32:01,142 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-24 01:32:01,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:01,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227065864] [2024-11-24 01:32:01,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:32:01,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829410433] [2024-11-24 01:32:01,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829410433] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:32:01,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:32:01,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-11-24 01:32:01,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736439194] [2024-11-24 01:32:01,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:32:01,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:32:01,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:01,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:32:01,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-11-24 01:32:01,144 INFO L87 Difference]: Start difference. First operand 1748 states and 2473 transitions. Second operand has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-24 01:32:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:02,575 INFO L93 Difference]: Finished difference Result 1817 states and 2474 transitions. [2024-11-24 01:32:02,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:32:02,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 249 [2024-11-24 01:32:02,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:02,577 INFO L225 Difference]: With dead ends: 1817 [2024-11-24 01:32:02,577 INFO L226 Difference]: Without dead ends: 1810 [2024-11-24 01:32:02,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 488 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2024-11-24 01:32:02,578 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 355 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:02,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 623 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:32:02,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-11-24 01:32:02,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1623. [2024-11-24 01:32:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1436 states have (on average 1.3885793871866294) internal successors, (1994), 1489 states have internal predecessors, (1994), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 131 states have call predecessors, (131), 131 states have call successors, (131) [2024-11-24 01:32:02,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2256 transitions. [2024-11-24 01:32:02,775 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2256 transitions. Word has length 249 [2024-11-24 01:32:02,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:02,775 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2256 transitions. [2024-11-24 01:32:02,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-24 01:32:02,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2256 transitions. [2024-11-24 01:32:02,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-24 01:32:02,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:02,778 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:02,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2024-11-24 01:32:02,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2024-11-24 01:32:02,978 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:32:02,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:02,979 INFO L85 PathProgramCache]: Analyzing trace with hash 647056584, now seen corresponding path program 1 times [2024-11-24 01:32:02,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:02,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974980738] [2024-11-24 01:32:02,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:02,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:32:03,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [415309076] [2024-11-24 01:32:03,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:03,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:03,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:03,012 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:03,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2024-11-24 01:32:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:03,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 01:32:03,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 3 proven. 186 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-24 01:32:05,499 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:32:11,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:11,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974980738] [2024-11-24 01:32:11,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:32:11,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415309076] [2024-11-24 01:32:11,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415309076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:32:11,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:32:11,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-24 01:32:11,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186072431] [2024-11-24 01:32:11,259 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:32:11,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:32:11,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:11,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:32:11,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=556, Unknown=1, NotChecked=0, Total=650 [2024-11-24 01:32:11,261 INFO L87 Difference]: Start difference. First operand 1623 states and 2256 transitions. Second operand has 16 states, 15 states have (on average 10.933333333333334) internal successors, (164), 15 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 01:32:15,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:15,016 INFO L93 Difference]: Finished difference Result 1771 states and 2477 transitions. [2024-11-24 01:32:15,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:32:15,017 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.933333333333334) internal successors, (164), 15 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 255 [2024-11-24 01:32:15,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:15,020 INFO L225 Difference]: With dead ends: 1771 [2024-11-24 01:32:15,020 INFO L226 Difference]: Without dead ends: 1767 [2024-11-24 01:32:15,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=194, Invalid=1137, Unknown=1, NotChecked=0, Total=1332 [2024-11-24 01:32:15,021 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 515 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 3489 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 3530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 3489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:15,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 922 Invalid, 3530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 3489 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-24 01:32:15,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-24 01:32:15,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1745. [2024-11-24 01:32:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1547 states have (on average 1.3994828700711053) internal successors, (2165), 1600 states have internal predecessors, (2165), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-24 01:32:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2449 transitions. [2024-11-24 01:32:15,272 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2449 transitions. Word has length 255 [2024-11-24 01:32:15,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:15,272 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2449 transitions. [2024-11-24 01:32:15,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.933333333333334) internal successors, (164), 15 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 01:32:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2449 transitions. [2024-11-24 01:32:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-24 01:32:15,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:15,274 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:15,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2024-11-24 01:32:15,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2024-11-24 01:32:15,474 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:32:15,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:15,475 INFO L85 PathProgramCache]: Analyzing trace with hash -948877654, now seen corresponding path program 1 times [2024-11-24 01:32:15,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:15,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776141738] [2024-11-24 01:32:15,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:15,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:32:15,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1528182829] [2024-11-24 01:32:15,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:15,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:15,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:15,499 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:15,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2024-11-24 01:32:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:15,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 01:32:15,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 3 proven. 192 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-24 01:32:18,725 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:32:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-24 01:32:20,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:20,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776141738] [2024-11-24 01:32:20,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:32:20,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528182829] [2024-11-24 01:32:20,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528182829] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:32:20,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:32:20,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 28 [2024-11-24 01:32:20,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009587034] [2024-11-24 01:32:20,489 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:32:20,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-24 01:32:20,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:20,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-24 01:32:20,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=641, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:32:20,490 INFO L87 Difference]: Start difference. First operand 1745 states and 2449 transitions. Second operand has 29 states, 28 states have (on average 11.428571428571429) internal successors, (320), 28 states have internal predecessors, (320), 12 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-24 01:32:42,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:42,412 INFO L93 Difference]: Finished difference Result 2023 states and 2840 transitions. [2024-11-24 01:32:42,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-24 01:32:42,413 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 11.428571428571429) internal successors, (320), 28 states have internal predecessors, (320), 12 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 257 [2024-11-24 01:32:42,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:42,416 INFO L225 Difference]: With dead ends: 2023 [2024-11-24 01:32:42,416 INFO L226 Difference]: Without dead ends: 2017 [2024-11-24 01:32:42,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1100, Invalid=4156, Unknown=0, NotChecked=0, Total=5256 [2024-11-24 01:32:42,417 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 1782 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 4474 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1788 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 4680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 4474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:42,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1788 Valid, 1504 Invalid, 4680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 4474 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2024-11-24 01:32:42,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2024-11-24 01:32:42,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 1920. [2024-11-24 01:32:42,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.4036321031048624) internal successors, (2396), 1759 states have internal predecessors, (2396), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-24 01:32:42,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2712 transitions. [2024-11-24 01:32:42,781 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2712 transitions. Word has length 257 [2024-11-24 01:32:42,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:42,781 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2712 transitions. [2024-11-24 01:32:42,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 11.428571428571429) internal successors, (320), 28 states have internal predecessors, (320), 12 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-24 01:32:42,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2712 transitions. [2024-11-24 01:32:42,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-24 01:32:42,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:42,783 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:42,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2024-11-24 01:32:42,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2024-11-24 01:32:42,983 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:32:42,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:42,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1338355572, now seen corresponding path program 2 times [2024-11-24 01:32:42,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:42,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39281431] [2024-11-24 01:32:42,984 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:32:42,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:43,012 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:32:43,013 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:32:43,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1263633090] [2024-11-24 01:32:43,014 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:32:43,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:43,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:43,017 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:43,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2024-11-24 01:32:43,184 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:32:43,185 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:32:43,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 01:32:43,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:46,253 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 3 proven. 198 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-24 01:32:46,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:32:46,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:46,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39281431] [2024-11-24 01:32:46,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:32:46,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263633090] [2024-11-24 01:32:46,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263633090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:32:46,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:32:46,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-24 01:32:46,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208294267] [2024-11-24 01:32:46,674 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:32:46,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:32:46,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:46,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:32:46,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:32:46,676 INFO L87 Difference]: Start difference. First operand 1920 states and 2712 transitions. Second operand has 18 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 01:32:49,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:49,816 INFO L93 Difference]: Finished difference Result 1930 states and 2712 transitions. [2024-11-24 01:32:49,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:32:49,816 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 259 [2024-11-24 01:32:49,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:49,819 INFO L225 Difference]: With dead ends: 1930 [2024-11-24 01:32:49,820 INFO L226 Difference]: Without dead ends: 1929 [2024-11-24 01:32:49,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:32:49,821 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 362 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 3193 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 3203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:49,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1082 Invalid, 3203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3193 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 01:32:49,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-11-24 01:32:50,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1920. [2024-11-24 01:32:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.403046280023433) internal successors, (2395), 1759 states have internal predecessors, (2395), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-24 01:32:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2711 transitions. [2024-11-24 01:32:50,122 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2711 transitions. Word has length 259 [2024-11-24 01:32:50,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:50,123 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2711 transitions. [2024-11-24 01:32:50,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 01:32:50,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2711 transitions. [2024-11-24 01:32:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-24 01:32:50,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:50,125 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:50,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Forceful destruction successful, exit code 0 [2024-11-24 01:32:50,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:50,326 INFO L396 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:32:50,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1460650331, now seen corresponding path program 2 times [2024-11-24 01:32:50,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:50,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12964749] [2024-11-24 01:32:50,327 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:32:50,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:50,366 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:32:50,366 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:32:50,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814274780] [2024-11-24 01:32:50,368 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:32:50,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:50,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:50,371 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:50,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2024-11-24 01:32:50,542 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:32:50,543 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:32:50,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 01:32:50,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-24 01:32:52,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:32:52,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:52,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12964749] [2024-11-24 01:32:52,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:32:52,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814274780] [2024-11-24 01:32:52,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814274780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:32:52,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:32:52,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 01:32:52,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375392007] [2024-11-24 01:32:52,893 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:32:52,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:32:52,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:52,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:32:52,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:32:52,894 INFO L87 Difference]: Start difference. First operand 1920 states and 2711 transitions. Second operand has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 14 states have internal predecessors, (166), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-24 01:32:55,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:55,454 INFO L93 Difference]: Finished difference Result 1929 states and 2711 transitions. [2024-11-24 01:32:55,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:32:55,455 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 14 states have internal predecessors, (166), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 260 [2024-11-24 01:32:55,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:55,458 INFO L225 Difference]: With dead ends: 1929 [2024-11-24 01:32:55,458 INFO L226 Difference]: Without dead ends: 1928 [2024-11-24 01:32:55,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:32:55,459 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 297 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:55,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1071 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 01:32:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2024-11-24 01:32:55,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1920. [2024-11-24 01:32:55,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.4024604569420036) internal successors, (2394), 1759 states have internal predecessors, (2394), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-24 01:32:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2710 transitions. [2024-11-24 01:32:55,728 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2710 transitions. Word has length 260 [2024-11-24 01:32:55,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:55,728 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2710 transitions. [2024-11-24 01:32:55,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 14 states have internal predecessors, (166), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-24 01:32:55,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2710 transitions. [2024-11-24 01:32:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-24 01:32:55,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:55,729 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:32:55,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Forceful destruction successful, exit code 0 [2024-11-24 01:32:55,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:55,930 INFO L396 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:32:55,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:55,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1893409305, now seen corresponding path program 2 times [2024-11-24 01:32:55,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:55,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185389817] [2024-11-24 01:32:55,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:32:55,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:55,952 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:32:55,952 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:32:55,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030275723] [2024-11-24 01:32:55,954 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:32:55,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:55,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:55,958 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:55,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2024-11-24 01:32:56,110 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:32:56,110 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:32:56,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 01:32:56,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:57,098 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 12 proven. 67 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2024-11-24 01:32:57,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:33:10,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:10,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185389817] [2024-11-24 01:33:10,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:33:10,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030275723] [2024-11-24 01:33:10,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030275723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:33:10,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:33:10,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 01:33:10,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553802750] [2024-11-24 01:33:10,735 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:33:10,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:33:10,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:10,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:33:10,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=80, Unknown=3, NotChecked=0, Total=110 [2024-11-24 01:33:10,736 INFO L87 Difference]: Start difference. First operand 1920 states and 2710 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-24 01:33:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:11,611 INFO L93 Difference]: Finished difference Result 1929 states and 2710 transitions. [2024-11-24 01:33:11,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:33:11,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 261 [2024-11-24 01:33:11,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:11,614 INFO L225 Difference]: With dead ends: 1929 [2024-11-24 01:33:11,614 INFO L226 Difference]: Without dead ends: 1928 [2024-11-24 01:33:11,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=27, Invalid=80, Unknown=3, NotChecked=0, Total=110 [2024-11-24 01:33:11,615 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 44 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:33:11,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 674 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:33:11,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2024-11-24 01:33:11,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1920. [2024-11-24 01:33:11,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.398945518453427) internal successors, (2388), 1759 states have internal predecessors, (2388), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-24 01:33:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2704 transitions. [2024-11-24 01:33:11,900 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2704 transitions. Word has length 261 [2024-11-24 01:33:11,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:11,901 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2704 transitions. [2024-11-24 01:33:11,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-24 01:33:11,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2704 transitions. [2024-11-24 01:33:11,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-24 01:33:11,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:11,903 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:33:11,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2024-11-24 01:33:12,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:12,104 INFO L396 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:33:12,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1433853799, now seen corresponding path program 2 times [2024-11-24 01:33:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:12,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168187070] [2024-11-24 01:33:12,105 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:33:12,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:12,136 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:33:12,137 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:33:12,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540914300] [2024-11-24 01:33:12,138 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:33:12,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:12,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:33:12,141 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:33:12,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2024-11-24 01:33:12,302 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:33:12,302 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:33:12,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-24 01:33:12,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:33:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 81 proven. 245 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-11-24 01:33:19,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:33:20,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:20,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168187070] [2024-11-24 01:33:20,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:33:20,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540914300] [2024-11-24 01:33:20,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540914300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:33:20,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:33:20,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-11-24 01:33:20,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987130953] [2024-11-24 01:33:20,052 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:33:20,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 01:33:20,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:20,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 01:33:20,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=459, Unknown=1, NotChecked=0, Total=552 [2024-11-24 01:33:20,054 INFO L87 Difference]: Start difference. First operand 1920 states and 2704 transitions. Second operand has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 20 states have internal predecessors, (169), 9 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-24 01:33:27,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:33:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:31,933 INFO L93 Difference]: Finished difference Result 1946 states and 2731 transitions. [2024-11-24 01:33:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 01:33:31,934 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 20 states have internal predecessors, (169), 9 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 262 [2024-11-24 01:33:31,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:31,936 INFO L225 Difference]: With dead ends: 1946 [2024-11-24 01:33:31,936 INFO L226 Difference]: Without dead ends: 1944 [2024-11-24 01:33:31,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=154, Invalid=837, Unknown=1, NotChecked=0, Total=992 [2024-11-24 01:33:31,937 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 261 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 4630 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 4644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4630 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:33:31,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 666 Invalid, 4644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 4630 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2024-11-24 01:33:31,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2024-11-24 01:33:32,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1920. [2024-11-24 01:33:32,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3954305799648505) internal successors, (2382), 1759 states have internal predecessors, (2382), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-24 01:33:32,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2698 transitions. [2024-11-24 01:33:32,184 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2698 transitions. Word has length 262 [2024-11-24 01:33:32,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:32,184 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2698 transitions. [2024-11-24 01:33:32,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 20 states have internal predecessors, (169), 9 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-24 01:33:32,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2698 transitions. [2024-11-24 01:33:32,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-24 01:33:32,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:32,186 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:33:32,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2024-11-24 01:33:32,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2024-11-24 01:33:32,386 INFO L396 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:33:32,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:32,386 INFO L85 PathProgramCache]: Analyzing trace with hash -750997591, now seen corresponding path program 2 times [2024-11-24 01:33:32,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:32,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479379291] [2024-11-24 01:33:32,387 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:33:32,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:32,427 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:33:32,427 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:33:32,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953364975] [2024-11-24 01:33:32,428 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:33:32,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:32,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:33:32,431 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:33:32,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2024-11-24 01:33:32,602 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:33:32,602 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:33:32,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-24 01:33:32,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:33:38,835 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 12 proven. 212 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-11-24 01:33:38,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:33:42,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:42,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479379291] [2024-11-24 01:33:42,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:33:42,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953364975] [2024-11-24 01:33:42,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953364975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:33:42,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:33:42,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-24 01:33:42,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868729235] [2024-11-24 01:33:42,495 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:33:42,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:33:42,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:42,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:33:42,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=852, Unknown=0, NotChecked=0, Total=992 [2024-11-24 01:33:42,496 INFO L87 Difference]: Start difference. First operand 1920 states and 2698 transitions. Second operand has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-24 01:33:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:49,719 INFO L93 Difference]: Finished difference Result 1935 states and 2709 transitions. [2024-11-24 01:33:49,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:33:49,719 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 264 [2024-11-24 01:33:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:49,722 INFO L225 Difference]: With dead ends: 1935 [2024-11-24 01:33:49,722 INFO L226 Difference]: Without dead ends: 1933 [2024-11-24 01:33:49,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=322, Invalid=1748, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 01:33:49,723 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 677 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 4083 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 4139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 4083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:33:49,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 739 Invalid, 4139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 4083 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-24 01:33:49,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2024-11-24 01:33:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1920. [2024-11-24 01:33:49,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3919156414762741) internal successors, (2376), 1759 states have internal predecessors, (2376), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-24 01:33:50,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2692 transitions. [2024-11-24 01:33:50,004 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2692 transitions. Word has length 264 [2024-11-24 01:33:50,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:50,005 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2692 transitions. [2024-11-24 01:33:50,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-24 01:33:50,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2692 transitions. [2024-11-24 01:33:50,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:33:50,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:50,007 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:33:50,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Forceful destruction successful, exit code 0 [2024-11-24 01:33:50,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2024-11-24 01:33:50,208 INFO L396 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:33:50,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1806088725, now seen corresponding path program 2 times [2024-11-24 01:33:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:50,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531874592] [2024-11-24 01:33:50,208 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:33:50,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:50,230 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:33:50,230 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:33:50,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995606891] [2024-11-24 01:33:50,231 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:33:50,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:33:50,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:33:50,233 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:33:50,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2024-11-24 01:33:50,383 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:33:50,383 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:33:50,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-24 01:33:50,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:33:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 33 proven. 236 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-24 01:33:57,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:33:58,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:58,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531874592] [2024-11-24 01:33:58,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:33:58,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995606891] [2024-11-24 01:33:58,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995606891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:33:58,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:33:58,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-24 01:33:58,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151311468] [2024-11-24 01:33:58,937 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:33:58,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 01:33:58,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:58,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 01:33:58,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:33:58,938 INFO L87 Difference]: Start difference. First operand 1920 states and 2692 transitions. Second operand has 21 states, 20 states have (on average 8.6) internal successors, (172), 19 states have internal predecessors, (172), 8 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-24 01:34:06,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:34:10,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:10,478 INFO L93 Difference]: Finished difference Result 1939 states and 2707 transitions. [2024-11-24 01:34:10,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 01:34:10,479 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 8.6) internal successors, (172), 19 states have internal predecessors, (172), 8 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 265 [2024-11-24 01:34:10,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:10,483 INFO L225 Difference]: With dead ends: 1939 [2024-11-24 01:34:10,483 INFO L226 Difference]: Without dead ends: 1937 [2024-11-24 01:34:10,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=206, Invalid=1354, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:34:10,484 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 466 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 4421 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 4465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 4421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:10,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 557 Invalid, 4465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 4421 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2024-11-24 01:34:10,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-11-24 01:34:10,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1920. [2024-11-24 01:34:10,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3895723491505565) internal successors, (2372), 1759 states have internal predecessors, (2372), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-24 01:34:10,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2688 transitions. [2024-11-24 01:34:10,766 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2688 transitions. Word has length 265 [2024-11-24 01:34:10,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:10,766 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2688 transitions. [2024-11-24 01:34:10,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.6) internal successors, (172), 19 states have internal predecessors, (172), 8 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-24 01:34:10,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2688 transitions. [2024-11-24 01:34:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-24 01:34:10,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:10,768 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:10,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Forceful destruction successful, exit code 0 [2024-11-24 01:34:10,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2024-11-24 01:34:10,968 INFO L396 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:34:10,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:10,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1542735694, now seen corresponding path program 2 times [2024-11-24 01:34:10,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:10,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020130214] [2024-11-24 01:34:10,969 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:34:10,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:10,995 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:34:10,995 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:34:10,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25601042] [2024-11-24 01:34:10,997 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:34:10,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:10,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:11,001 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:11,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2024-11-24 01:34:11,148 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:34:11,148 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:34:11,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:34:11,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:12,569 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 12 proven. 198 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-24 01:34:12,569 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:34:29,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:29,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020130214] [2024-11-24 01:34:29,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:34:29,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25601042] [2024-11-24 01:34:29,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25601042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:34:29,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:34:29,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 01:34:29,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394212329] [2024-11-24 01:34:29,895 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 01:34:29,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:34:29,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:29,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:34:29,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=281, Unknown=5, NotChecked=0, Total=342 [2024-11-24 01:34:29,896 INFO L87 Difference]: Start difference. First operand 1920 states and 2688 transitions. Second operand has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-24 01:34:31,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:31,430 INFO L93 Difference]: Finished difference Result 2077 states and 2898 transitions. [2024-11-24 01:34:31,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:34:31,430 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) Word has length 266 [2024-11-24 01:34:31,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:31,433 INFO L225 Difference]: With dead ends: 2077 [2024-11-24 01:34:31,433 INFO L226 Difference]: Without dead ends: 2076 [2024-11-24 01:34:31,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=56, Invalid=281, Unknown=5, NotChecked=0, Total=342 [2024-11-24 01:34:31,434 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 133 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:31,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1250 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:34:31,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2024-11-24 01:34:31,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2036. [2024-11-24 01:34:31,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2036 states, 1813 states have (on average 1.4009928295642582) internal successors, (2540), 1865 states have internal predecessors, (2540), 168 states have call successors, (168), 2 states have call predecessors, (168), 2 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-24 01:34:31,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2876 transitions. [2024-11-24 01:34:31,713 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2876 transitions. Word has length 266 [2024-11-24 01:34:31,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:31,713 INFO L471 AbstractCegarLoop]: Abstraction has 2036 states and 2876 transitions. [2024-11-24 01:34:31,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-24 01:34:31,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2876 transitions. [2024-11-24 01:34:31,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 01:34:31,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:31,715 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:34:31,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2024-11-24 01:34:31,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2024-11-24 01:34:31,915 INFO L396 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-24 01:34:31,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:31,916 INFO L85 PathProgramCache]: Analyzing trace with hash -580166150, now seen corresponding path program 3 times [2024-11-24 01:34:31,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:31,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591296672] [2024-11-24 01:34:31,916 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:34:31,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:31,954 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-24 01:34:31,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 01:34:31,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634304422] [2024-11-24 01:34:31,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:34:31,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:34:31,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:31,959 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:34:31,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c19a4ce-bd13-46ee-a80e-f50c30ecb56b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2024-11-24 01:34:32,208 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-24 01:34:32,208 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:34:32,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 01:34:32,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:34:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:34:35,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:34:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:34:41,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:41,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591296672] [2024-11-24 01:34:41,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 01:34:41,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634304422] [2024-11-24 01:34:41,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634304422] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:34:41,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:34:41,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-24 01:34:41,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643959911] [2024-11-24 01:34:41,257 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:34:41,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 01:34:41,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:41,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 01:34:41,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:34:41,258 INFO L87 Difference]: Start difference. First operand 2036 states and 2876 transitions. Second operand has 26 states, 25 states have (on average 13.08) internal successors, (327), 26 states have internal predecessors, (327), 11 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 11 states have call predecessors, (38), 11 states have call successors, (38) [2024-11-24 01:34:45,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:34:51,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:34:55,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:35:00,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:35:08,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 01:35:11,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]